{"query_echo":{"q":"","filters":{"analysis_type":["attribution analysis"]},"warnings":[]},"total":{"value":132,"relation":"eq"},"page":2,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=attribution+analysis&page=2","next":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=attribution+analysis&page=3","stability":"beta","ai_marking":{"digital_source_type":{"uri":"http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia","name":"Created using Generative AI"},"notice":"Summary and key insights are generated using artificial intelligence."},"results":[{"id":"climcent-000054","url":"https://climateinsightsdirectory.org/document/climcent-000054","title":"Record Snow Drought Limits Western Water Supplies","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"briefing","language":"en","date_published":"2026-03","source_url":"https://www.climatecentral.org/climate-briefings/march-2026","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"March 2026 was the warmest March on record for the contiguous U.S., characterized by a historic snow drought in the West and extreme heat that increased cooling energy demand. Globally, the month was the second-warmest on record, with Arctic sea-ice reaching a near-record low maximum. In the U.S., severe drought affected 77% of the contiguous region, while Hawaii experienced record-breaking precipitation due to Kona lows.","ai_generated":true,"unit":"climcent-000054#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"March 2026 was the warmest March on record for the contiguous U.S., with an average temperature 9.4°F above the 20th-century average, marking the first time a monthly anomaly exceeded +9°F.","ai_generated":true,"unit":"climcent-000054#insight-1","date_modified":"2026-10-23"},{"text":"The western U.S. experienced a historic snow drought, with the amount of water stored in the snowpack reaching its lowest record for April 1. Snow water equivalent is below 50% of the 1991-2020 normal in most watershed basins from Oregon to New Mexico.","ai_generated":true,"unit":"climcent-000054#insight-2","date_modified":"2026-10-23"},{"text":"Widespread drought conditions affected at least 77% of the contiguous U.S. as of April 7, 2026. The period from January to March 2026 was the driest on record for the contiguous U.S., with some areas in Arizona, California, Colorado, Kansas, Nebraska, New Mexico, and Texas receiving less than 10% of their average precipitation.","ai_generated":true,"unit":"climcent-000054#insight-3","date_modified":"2026-10-23"},{"text":"Human-caused climate change is identified as the primary driver of spring warming trends in 98% of 241 major U.S. cities from 1970 to 2025. In March 2026, 111 of 192 analyzed cities in the contiguous U.S. had at least one week of temperatures made at least twice as likely by human-caused climate change.","ai_generated":true,"unit":"climcent-000054#insight-4","date_modified":"2026-10-23"},{"text":"Hawaii experienced record-breaking precipitation in March 2026 due to Kona lows, with statewide precipitation averaging 22.27 inches, surpassing the previous 2006 record of 18.77 inches.","ai_generated":true,"unit":"climcent-000054#insight-5","date_modified":"2026-10-23"},{"text":"Global temperatures in March 2026 were the second-warmest on record for combined land and ocean, tied with 2024. Arctic sea-ice reached its 2026 maximum on March 15 at 5.52 million square miles, which was statistically tied for the lowest on record since 1978/1979.","ai_generated":true,"unit":"climcent-000054#insight-6","date_modified":"2026-10-23"},{"text":"Extreme March heat led to record cooling degree days in the Northwest, Southwest, and West U.S. regions. Arizona recorded 228 degree-days Fahrenheit in March 2026, nearly doubling its previous record of 116°Df from 2004.","ai_generated":true,"unit":"climcent-000054#insight-7","date_modified":"2026-10-23"}],"climate_tags":["drought","precipitation","extreme event attribution","energy demand"],"geography_discussed":["Arctic","Antarctic","Hawaii","Alaska","Arizona","California","Colorado","New Mexico","Nevada","Puerto Rico"],"frame_perspective":[],"analysis_type":["climate monitoring","attribution analysis","seasonal forecasting"]},{"id":"climcent-000207","url":"https://climateinsightsdirectory.org/document/climcent-000207","title":"Monthly Attribution Overview – January 2026","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2026-02-03","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-january-2026","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"In January 2026, the United States experienced an average temperature anomaly of -1.2°F, with 133 cities recording cooler-than-average conditions. Despite this national trend, the western U.S., particularly the Northern Rockies & Plains, saw significant warming, with Helena, Montana, recording the highest anomaly at 9.1°F. Long-term data indicates that 191 of the 194 analyzed cities have experienced warming trends since 1970, with Great Falls, Montana, showing the largest increase of 9.6°F. Climate attribution analysis using the Climate Shift Index (CSI) highlighted that San Juan, Puerto Rico, had 24 days where temperatures were at least five times more likely due to climate change.","ai_generated":true,"unit":"climcent-000207#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The United States generally experienced below-average temperatures in January 2026, with an average anomaly of -1.2°F across 194 analyzed cities. While 133 cities were cooler than average, 57 were warmer, and two were near-normal.","ai_generated":true,"unit":"climcent-000207#insight-1","date_modified":"2026-10-23"},{"text":"Regional temperature variations were stark, with the Northern Rockies & Plains being the most unusually warm region (average anomalies exceeding 3.3°F) and the Ohio Valley being the most unusually cold (average anomalies of -3.9°F). Helena, Montana, was the warmest city relative to normal, at 9.1°F above average.","ai_generated":true,"unit":"climcent-000207#insight-2","date_modified":"2026-10-23"},{"text":"Long-term trends show consistent warming since 1970 for nearly all analyzed locations (191 out of 194 cities). Great Falls, Montana, recorded the most significant increase, with average January temperatures rising 9.6°F since 1970.","ai_generated":true,"unit":"climcent-000207#insight-3","date_modified":"2026-10-23"},{"text":"Climate attribution analysis using the Climate Shift Index (CSI) showed that San Juan, Puerto Rico, had 24 days in January 2026 where temperatures were at least five times more likely to occur because of climate change. On average, cities in the West had the highest number of days (12) with a CSI of 2 or above.","ai_generated":true,"unit":"climcent-000207#insight-4","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Northern Rockies & Plains","Ohio Valley","Helena","Great Falls","San Juan","Puerto Rico"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"climcent-000096","url":"https://climateinsightsdirectory.org/document/climcent-000096","title":"Climate Central’s Monthly Briefing Highlights from February 2026","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"briefing","language":"en","date_published":"2026-02","source_url":"https://www.climatecentral.org/climate-briefings/february-2026","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"February 2026 was the fifth-warmest month globally on record, with the contiguous U.S. experiencing its second-warmest winter in 132 years. A critical 'snow drought' affected the western U.S., where snow-covered areas in January were only 34% of normal, threatening water supplies for agriculture and energy. Climate Central's analysis indicates that human-driven climate change significantly influenced winter temperatures, particularly in the Southwest, and is the primary cause of spring warming in 98% of 241 examined U.S. cities.","ai_generated":true,"unit":"climcent-000096#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"February 2026 was the fifth-warmest month on record globally for combined land and ocean temperatures, with ocean areas specifically ranking as the second-warmest on record for that month.","ai_generated":true,"unit":"climcent-000096#insight-1","date_modified":"2026-10-23"},{"text":"The contiguous United States experienced its second-warmest winter on record for the period of December, January, and February 2025-2026, with nine states recording their warmest winter ever.","ai_generated":true,"unit":"climcent-000096#insight-2","date_modified":"2026-10-23"},{"text":"A historic snow drought occurred across the western United States, with January 2026 snow-covered areas reaching a record low of 34% of normal and snow cover duration by the end of February being 63% below normal.","ai_generated":true,"unit":"climcent-000096#insight-3","date_modified":"2026-10-23"},{"text":"Water security in the western U.S. is threatened as snow water equivalent (SWE) is below 50% of the 1991-2020 normal in most watershed basins from Oregon to New Mexico, with record lows in Colorado and near-record lows in Arizona, New Mexico, Oregon, and Utah.","ai_generated":true,"unit":"climcent-000096#insight-4","date_modified":"2026-10-23"},{"text":"Human-driven climate change is identified as the primary cause of spring warming in 98% of 241 U.S. cities analyzed between 1970 and 2025.","ai_generated":true,"unit":"climcent-000096#insight-5","date_modified":"2026-10-23"},{"text":"Climate Central's Climate Shift Index (CSI) analysis shows that more than one in six people globally experienced temperatures with a strong climate change influence every day from December 2025 to February 2026.","ai_generated":true,"unit":"climcent-000096#insight-6","date_modified":"2026-10-23"},{"text":"Forecasts suggest global temperatures will likely rise well above 1.5°C above the 1850-1900 preindustrial baseline by the end of 2026, potentially influenced by the development of El Niño conditions.","ai_generated":true,"unit":"climcent-000096#insight-7","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution","drought","water-supply management"],"geography_discussed":["Arizona","Colorado","New Mexico","Oregon","Utah","Puerto Rico","Colorado River Basin","Phoenix","Salt Lake City","Tucson"],"frame_perspective":[],"analysis_type":["climate monitoring","attribution analysis","seasonal forecasting"]},{"id":"climcent-000220","url":"https://climateinsightsdirectory.org/document/climcent-000220","title":"Monthly Attribution Overview – December 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2026-01-06","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-december-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report finds that while December 2025 temperatures in the U.S. were evenly split between warmer-than-average and cooler-than-average cities, long-term trends show nearly all analyzed cities have warmed since 1970. The Southwest was the most unusually hot region, with Casper, Wyoming, recording the highest anomaly. Climate signal (CSI) was minimal nationwide, though San Juan, Puerto Rico, saw 10 days where temperatures were at least five times more likely due to climate change.","ai_generated":true,"unit":"climcent-000220#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"In December 2025, the average temperature anomaly across 194 analyzed U.S. cities was 0.4°F, with an even split of 95 cities being warmer than average and 95 being cooler than average. Twelve cities recorded their hottest December on record.","ai_generated":true,"unit":"climcent-000220#insight-1","date_modified":"2026-10-23"},{"text":"Regional temperature variations were significant: the Southwest was the most unusually hot region with average anomalies exceeding 9.4°F, while the Southeast, Ohio Valley, Upper Midwest, and Northeast experienced cooler-than-average temperatures. Casper, Wyoming, was the most unusually warm city, 12.1°F above usual.","ai_generated":true,"unit":"climcent-000220#insight-2","date_modified":"2026-10-23"},{"text":"Long-term data indicates that 191 out of 194 analyzed cities have shown warming trends for December since 1970. Wheeling, West Virginia, has seen the most significant December warming in this period, with its average December now 10.7°F warmer than in 1970.","ai_generated":true,"unit":"climcent-000220#insight-3","date_modified":"2026-10-23"},{"text":"The Climate Signal Index (CSI) was minimal across most of the U.S. in December, with only four cities experiencing at least one week of days at or above CSI 2. However, San Juan, Puerto Rico, had 10 days at CSI 5, meaning temperatures on those days were at least five times more likely because of climate change.","ai_generated":true,"unit":"climcent-000220#insight-4","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Southwest","Alaska","Puerto Rico"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"wwatt-000016","url":"https://climateinsightsdirectory.org/document/wwatt-000016","title":"Unequal Evidence and Impacts: Limits to Adaptation to Extreme Weather in 2025","publisher":{"name":"World Weather Attribution","organization":"world-weather-attribution"},"document_type":"report","language":"en","date_published":"2025-12-29","source_url":"https://www.worldweatherattribution.org/unequal-evidence-and-impacts-limits-to-adaptation-extreme-weather-in-2025/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report analyzes 22 extreme weather events in 2025, noting that despite weak La Nina conditions, global temperatures remained exceptionally high due to human-driven emissions. It emphasizes that warming of approximately 1.3°C has intensified heatwaves, droughts, and floods, with a specific focus on how women and marginalized groups bear a disproportionate burden. The document also identifies a critical gap in climate science, where a lack of observational data in the Global South hinders confident analysis of rainfall events. Finally, it argues that while adaptation is necessary, events like Hurricane Melissa in the Caribbean demonstrate that adaptation has limits and cannot replace the urgent need for rapid emission reductions.","ai_generated":true,"unit":"wwatt-000016#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"In 2025, global temperatures remained exceptionally high due to human-driven greenhouse gas emissions, despite the presence of weak La Nina conditions and a cooler phase of natural climate variability. This warming intensified prolonged heatwaves, drought, fire weather, and extreme rainfall and winds, resulting in thousands of deaths and millions of displacements at approximately 1.3°C of anthropogenic warming.","ai_generated":true,"unit":"wwatt-000016#insight-1","date_modified":"2026-10-23"},{"text":"Since the signing of the Paris Agreement in 2015, global warming has increased by 0.3°C, which has added an average of 11 extra hot days per year. This increase has made certain extreme heat events, such as those in the Amazon, Burkina Faso, and Mali, almost ten times more likely.","ai_generated":true,"unit":"wwatt-000016#insight-2","date_modified":"2026-10-23"},{"text":"Climate impacts are distributed unequally, with women facing disproportionate risks. In South Sudan, women are more affected by extreme heat because of their concentration in heat-exposed informal work like street vending and agriculture, combined with low literacy rates and limited resources. Globally, unpaid caring responsibilities and underrepresentation in leadership further increase women's exposure to health risks and disrupt their education.","ai_generated":true,"unit":"wwatt-000016#insight-3","date_modified":"2026-10-23"},{"text":"There is a systemic inequality in the scientific evidence base for climate change. Analysis of heavy rainfall events in the Global South is often hindered by gaps in observational data and a reliance on climate models that were primarily developed for the Global North.","ai_generated":true,"unit":"wwatt-000016#insight-4","date_modified":"2026-10-23"},{"text":"Adaptation measures have inherent limits; for example, Hurricane Melissa demonstrated that even with relatively high levels of preparedness, small islands like Jamaica and other Caribbean nations still suffer extreme losses and damage from intense storms.","ai_generated":true,"unit":"wwatt-000016#insight-5","date_modified":"2026-10-23"}],"climate_tags":["extreme weather event","heat wave","flood","drought","wildfire","Paris Agreement","climate change adaptation","climate justice","climate modeling"],"geography_discussed":["Amazon rainforest","Burkina Faso","Mali","South Sudan","Jamaica","Caribbean"],"frame_perspective":[],"analysis_type":["attribution analysis","impact assessment"]},{"id":"climcent-000092","url":"https://climateinsightsdirectory.org/document/climcent-000092","title":"Five Things to Know About Climate Change in 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"fact sheet","language":"en","date_published":"2025-12-10","source_url":"https://www.climatecentral.org/climate-matters/five-things-to-know-about-climate-change-in-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document reports that 2025 is virtually certain to be among the top five hottest years globally, driven by rising carbon pollution from fossil fuels. In the U.S., record high temperatures significantly outpaced record lows, and the year saw a record-costly start for billion-dollar weather and climate disasters, including the most expensive wildfire event on record in Los Angeles. Globally, carbon pollution intensified Hurricane Melissa, which devastated Jamaica. The report also highlights a trend of 'hydroclimate whiplash' contributing to both the Los Angeles fires and deadly flash floods in Texas, while noting that the U.S. has rolled back key clean energy policies and is set to withdraw from the Paris Agreement by January 2026.","ai_generated":true,"unit":"climcent-000092#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Carbon pollution significantly influenced U.S. temperature records in 2025, with record highs occurring far more frequently than record lows. Across 247 major U.S. cities through November, there were 1,313 record highs compared to 298 record lows, and carbon pollution made 89% of those record highs more likely.","ai_generated":true,"unit":"climcent-000092#insight-1","date_modified":"2026-10-23"},{"text":"The Los Angeles wildfires of January 2025 were the costliest wildfire event in U.S. history, exceeding $60 billion in damages. The disaster resulted in 31 deaths and the destruction of over 16,000 homes and businesses, with human-caused warming making the associated fire weather 35% more likely and 6% more intense.","ai_generated":true,"unit":"climcent-000092#insight-2","date_modified":"2026-10-23"},{"text":"Hurricane Melissa, the strongest storm of the year, hit Jamaica on October 28 as a Category 5 storm, causing 45 deaths and damages equivalent to 41% of Jamaica's GDP. Human-caused climate change made the ocean temperatures (1.4°C warmer than average) that fueled the storm's rapid intensification at least 500 times more likely.","ai_generated":true,"unit":"climcent-000092#insight-3","date_modified":"2026-10-23"},{"text":"The U.S. experienced a record number of flash floods in 2025, including a deadly event in the Texas Hill Country in early July that claimed at least 135 lives. This event, and the Los Angeles fires, were influenced by 'hydroclimate whiplash,' where extreme rainfall follows prolonged drought or wet periods are followed by rapid drying.","ai_generated":true,"unit":"climcent-000092#insight-4","date_modified":"2026-10-23"},{"text":"The U.S. has seen a record-costly start to 2025 regarding billion-dollar weather and climate disasters, with 14 such events recorded through June, exceeding the long-term annual average of nine. This trend coincides with a U.S. policy shift, including the rollback of 2021-2022 clean energy policies and a planned withdrawal from the Paris Agreement by January 2026.","ai_generated":true,"unit":"climcent-000092#insight-5","date_modified":"2026-10-23"}],"climate_tags":["carbon dioxide emissions","fossil fuel","extreme heat","wildfire","tropical cyclone","flash flood","renewable energy","wind power","solar energy","Paris Agreement","climate resilience"],"geography_discussed":["Jamaica","Los Angeles","Texas","Mississippi","Arkansas","Missouri","Illinois","Indiana","Kentucky","Tennessee","Alabama"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"climcent-000132","url":"https://climateinsightsdirectory.org/document/climcent-000132","title":"Monthly Attribution Overview – November 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-12-02","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-november-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"In November 2025, the United States experienced an average temperature anomaly of 2.1°F across 194 analyzed cities, with the western half of the country seeing exclusively above-average temperatures. The Southwest, South, and Northern Rockies and Plains were the most unusually hot regions, with anomalies exceeding 4.8°F. Waco, Texas, recorded the highest anomaly at 7.5°F. Long-term trends show 183 of 194 stations have warmed since 1970, with El Paso, Texas, seeing the greatest increase of 6.9°F. Climate attribution via the Climate Shift Index (CSI) highlighted San Juan, Puerto Rico, with 27 days at CSI 5, meaning temperatures were at least five times more likely due to climate change.","ai_generated":true,"unit":"climcent-000132#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Across 194 analyzed cities in the U.S., the average temperature anomaly for November 2025 was 2.1°F, with 139 cities recording hotter-than-average temperatures. The western half of the U.S. saw above-average temperatures in every city, and anomalies exceeded 4.8°F in the South, the Southwest, and the Northern Rockies and Plains.","ai_generated":true,"unit":"climcent-000132#insight-1","date_modified":"2026-10-23"},{"text":"Waco, Texas, was the most unusually warm city in November 2025, with a temperature anomaly of 7.5°F.","ai_generated":true,"unit":"climcent-000132#insight-2","date_modified":"2026-10-23"},{"text":"Since 1970, 183 of the 194 analyzed ACIS stations have shown warming trends for November. El Paso, Texas, experienced the most significant increase, with average November temperatures rising by 6.9°F since 1970.","ai_generated":true,"unit":"climcent-000132#insight-3","date_modified":"2026-10-23"},{"text":"Climate attribution analysis using the Climate Shift Index (CSI) showed that San Juan, Puerto Rico, had 27 days in November at CSI 5, indicating climate change made those temperatures at least five times more likely. The Southwest region had the highest average number of days (9) with a CSI of 2 or above.","ai_generated":true,"unit":"climcent-000132#insight-4","date_modified":"2026-10-23"},{"text":"The Northeast was the only region in the U.S. that was cooler than normal in November 2025, with temperatures 1.0°F below normal.","ai_generated":true,"unit":"climcent-000132#insight-5","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Waco","El Paso","San Juan","Puerto Rico","Southwest","Northeastern United States"],"frame_perspective":[],"analysis_type":["attribution analysis"]},{"id":"climcent-000235","url":"https://climateinsightsdirectory.org/document/climcent-000235","title":"2025 Winter Package","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"briefing","language":"en","date_published":"2025-12","source_url":"https://www.climatecentral.org/climate-briefings/november-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document reports that November 2025 was the third warmest on record globally and the fourth warmest for the contiguous U.S. It highlights a long-term trend of warming winters in the U.S., where the coldest day of the year has warmed by approximately 7°F since 1970. The briefing also notes significant regional anomalies, such as extreme warmth in Texas and heavy rainfall in southern California, while discussing the ongoing La Niña advisory and its expected impacts on weather patterns through early 2026.","ai_generated":true,"unit":"climcent-000235#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Global temperatures in November 2025 were exceptionally high, ranking as the third warmest on record since 1850, with all ten hottest Novembers globally occurring since 2015.","ai_generated":true,"unit":"climcent-000235#insight-1","date_modified":"2026-10-23"},{"text":"U.S. winters have experienced significant warming since 1970, with average temperatures rising by 3.9°F across 239 cities and the coldest day of the year warming by about 7°F across 242 locations.","ai_generated":true,"unit":"climcent-000235#insight-2","date_modified":"2026-10-23"},{"text":"Cold outbreaks in the U.S. are becoming less frequent, less intense, and shorter in duration, having shortened by roughly six days on average across 244 cities between 1970 and 2023.","ai_generated":true,"unit":"climcent-000235#insight-3","date_modified":"2026-10-23"},{"text":"Specific regional anomalies in November 2025 included record warmth in Idaho, Nevada, Oregon, Texas, and Utah, and extreme precipitation in southern California where some counties saw over 200% of average rainfall.","ai_generated":true,"unit":"climcent-000235#insight-4","date_modified":"2026-10-23"},{"text":"A La Niña advisory is in effect due to below-normal sea surface temperatures in the tropical Pacific, a state expected to persist into early 2026 before transitioning to a neutral state by March.","ai_generated":true,"unit":"climcent-000235#insight-5","date_modified":"2026-10-23"}],"climate_tags":["carbon dioxide","drought","La Niña","extreme event attribution"],"geography_discussed":["Canadian Arctic","Europe","Siberia","Africa","Asia","Australia","Hawaii","Idaho","Nevada","Oregon","Texas","Utah","Chicago","St. Louis","Minneapolis","Detroit","Pittsburgh","Waco","California","Los Angeles","Arizona","New Mexico","Colorado","Canada","Alaska","Maryland","Massachusetts","New Jersey","Pennsylvania","Montana","Washington"],"frame_perspective":[],"analysis_type":["trend analysis","attribution analysis","meteorological forecasting"]},{"id":"climcent-000152","url":"https://climateinsightsdirectory.org/document/climcent-000152","title":"Monthly Attribution Overview – October 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-11-04","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-october-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"In October 2025, the United States experienced an average temperature anomaly of 2.0°F across 192 analyzed cities, with the Ohio Valley seeing the most unusual heat at 4.89°F above normal. Fairbanks, AK, recorded the highest individual city anomaly at 7.1°F. Long-term data indicates that 190 of 191 analyzed stations have shown positive warming trends since 1970, with Wheeling, WV, experiencing the fastest increase at 7.8°F. Climate change influence was particularly strong in San Juan, PR, which had 29 days at a Climate Shift Index (CSI) of 5, and Honolulu, HI, where both cities saw at least two weeks of CSI values of 2 or higher.","ai_generated":true,"unit":"climcent-000152#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Across 192 analyzed cities in the U.S., the average temperature anomaly for October 2025 was 2.0°F, with 150 of those cities recording hotter-than-average temperatures.","ai_generated":true,"unit":"climcent-000152#insight-1","date_modified":"2026-10-23"},{"text":"The Ohio Valley region experienced the most unusual heat in October 2025, with an average temperature anomaly of 4.89°F. Conversely, the West region had the smallest difference from normal, being 0.5°F cooler than average.","ai_generated":true,"unit":"climcent-000152#insight-2","date_modified":"2026-10-23"},{"text":"Long-term warming trends since 1970 are evident in 190 out of 191 analyzed ACIS stations. Wheeling, WV, showed the most significant warming, with its average October temperature increasing by 7.8°F since 1970.","ai_generated":true,"unit":"climcent-000152#insight-3","date_modified":"2026-10-23"},{"text":"Climate change significantly influenced temperatures in specific locations: San Juan, PR, had 29 days in October with a Climate Shift Index (CSI) of 5, meaning temperatures were at least five times more likely due to climate change. Both San Juan and Honolulu, HI, experienced at least two weeks of CSI values of 2 or higher.","ai_generated":true,"unit":"climcent-000152#insight-4","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Ohio Valley","Fairbanks","Wheeling","San Juan","Honolulu"],"frame_perspective":[],"analysis_type":["attribution analysis"]},{"id":"climcent-000344","url":"https://climateinsightsdirectory.org/document/climcent-000344","title":"Running Out of Cool Days","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-10-28","source_url":"https://assets.ctfassets.net/cxgxgstp8r5d/4FQz6CuX6a2bOAhYf43sel/9b0dd0c433f189dcd2be24939d7a8223/Running_Out_of_Cool_Days__How_climate_change_is_decreasing_the_odds_of_optimal_marathon_conditions.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The report finds that 86% of analyzed global marathons will see a decline in the odds of optimal running conditions by 2045. While elite women are more resilient to heat, elite men are most affected, particularly at the Tokyo Marathon, which is projected to see the largest decline in ideal conditions among the Abbott World Marathon Majors. The analysis highlights that the 2025 Tokyo and Berlin Marathons experienced unusual heat made two to three times more likely by climate change. Shifting race start times to sunrise is identified as a potential adaptation to increase the likelihood of optimal temperatures for most runners.","ai_generated":true,"unit":"climcent-000344#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Of the 221 global marathons analyzed, 86% (190 races) are projected to experience a decrease in the probability of optimal running conditions for either elite or recreational runners by 2045, including all seven Abbott World Marathon Majors.","ai_generated":true,"unit":"climcent-000344#insight-1","date_modified":"2026-10-23"},{"text":"Among the Abbott World Marathon Majors, the Tokyo Marathon has the highest current probability of ideal conditions for elite men (69%) but is projected to face the steepest decline for this group, dropping to 57% by 2045.","ai_generated":true,"unit":"climcent-000344#insight-2","date_modified":"2026-10-23"},{"text":"Elite female runners exhibit higher temperature tolerance than other groups, and for some races like Boston and Tokyo, warming may actually slightly increase their odds of optimal conditions between 2025 and 2045.","ai_generated":true,"unit":"climcent-000344#insight-3","date_modified":"2026-10-23"},{"text":"Human-caused climate change significantly increased the likelihood of extreme heat during the 2025 Tokyo and Berlin Marathons, making the unusual warmth three times and two times more likely, respectively.","ai_generated":true,"unit":"climcent-000344#insight-4","date_modified":"2026-10-23"},{"text":"Moving race start times to earlier in the day (near sunrise) could mitigate warming impacts for most runners; for example, it would increase the 2045 probability of peak conditions for elite men in London from 17% to 61%.","ai_generated":true,"unit":"climcent-000344#insight-5","date_modified":"2026-10-23"}],"climate_tags":["climate change","extreme weather event","climate change adaptation"],"geography_discussed":["Tokyo","Berlin","London","Boston","New York City","Chicago","Sydney","Europe","Canada","United States"],"frame_perspective":[],"analysis_type":["predictive analysis","attribution analysis"]},{"id":"climcent-000086","url":"https://climateinsightsdirectory.org/document/climcent-000086","title":"Warmer, Thirstier Air Worsens Drought","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"fact sheet","language":"en","date_published":"2025-10-01","source_url":"https://www.climatecentral.org/climate-matters/warmer-thirstier-air-worsens-drought","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The document explains that rising global temperatures increase 'atmospheric thirst,' where the atmosphere absorbs more moisture from the land. In the western U.S., this heat-driven demand has replaced lack of precipitation as the leading cause of exceptional drought since 2000, contributing to a multi-decade megadrought in the Southwest and increasing wildfire risk in California and Nevada.","ai_generated":true,"unit":"climcent-000086#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Since 2000, atmospheric thirst caused by human-induced warming has become the primary driver of exceptional drought in the western U.S., shifting away from the historical primary cause, which was a lack of rain and snow.","ai_generated":true,"unit":"climcent-000086#insight-1","date_modified":"2026-10-23"},{"text":"The atmosphere's capacity to hold moisture increases exponentially with temperature, expanding by approximately 4% for every 1°F of warming, which intensifies the water cycle by amplifying both heavy rainfall and drought.","ai_generated":true,"unit":"climcent-000086#insight-2","date_modified":"2026-10-23"},{"text":"Human-caused climate change was responsible for 72% of the increase in atmospheric thirst in the western U.S. between 1980 and 2022, contributing to increased irrigation demand in California's Central Valley.","ai_generated":true,"unit":"climcent-000086#insight-3","date_modified":"2026-10-23"},{"text":"Warming is slowing the recovery process from severe droughts in the western U.S.; current recovery times (2000-2040) are estimated to be one to four months longer than those between 1901 and 1980.","ai_generated":true,"unit":"climcent-000086#insight-4","date_modified":"2026-10-23"},{"text":"Increased atmospheric thirst is elevating wildfire risk in the western U.S. by pulling water from plants; specifically, human-caused warming was the primary cause of the rise in vapor pressure deficit from 1979 to 2020.","ai_generated":true,"unit":"climcent-000086#insight-5","date_modified":"2026-10-23"}],"climate_tags":["drought","water security","extreme event attribution"],"geography_discussed":["Southwest","California","Nevada","Colorado River Basin","Texas Hill Country","Central Valley","Mediterranean","World"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"climcent-000201","url":"https://climateinsightsdirectory.org/document/climcent-000201","title":"2025 Winter Package","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"briefing","language":"en","date_published":"2025-10-01","source_url":"https://www.climatecentral.org/climate-briefings/october-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The October 2025 briefing reports that global temperatures remained exceptionally high, with the month ranking as the third warmest on record. In the U.S., warming fall temperatures have delayed the first freeze in 88% of analyzed cities, while significant drought persists across 67% of the contiguous U.S. despite localized heavy rainfall in Southern California.","ai_generated":true,"unit":"climcent-000201#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"October 2025 was the third warmest October globally on record, following 2023 and 2024. Both the Arctic and Antarctic Circles set new October record high temperatures, with some areas exceeding the 1991-2020 baseline by more than 7°C.","ai_generated":true,"unit":"climcent-000201#insight-1","date_modified":"2026-10-23"},{"text":"Global temperatures in 2025 have remained consistently high, with every month through October ranking among the top three warmest on record. The last 12 months were approximately 1.5°C above the 1850-1900 pre-industrial baseline.","ai_generated":true,"unit":"climcent-000201#insight-2","date_modified":"2026-10-23"},{"text":"In the United States, warming temperatures in September, October, and November have led to a delayed first freeze in 88% of the cities analyzed by Climate Central since 1970. Additionally, winters in 239 U.S. cities have warmed by an average of 3.9°F since 1970.","ai_generated":true,"unit":"climcent-000201#insight-3","date_modified":"2026-10-23"},{"text":"As of early November, more than 67% of the contiguous U.S. is experiencing abnormally dry conditions, with over 44% in at least moderate drought. While conditions improved in the Ohio Valley, they worsened in Texas.","ai_generated":true,"unit":"climcent-000201#insight-4","date_modified":"2026-10-23"},{"text":"La Niña-like conditions are present in the central Pacific Ocean, though 21st-century La Niña years are now warmer than El Niño years from a few decades ago due to human-caused warming.","ai_generated":true,"unit":"climcent-000201#insight-5","date_modified":"2026-10-23"}],"climate_tags":["climate change","sea surface temperature","La Niña","drought","extreme event attribution"],"geography_discussed":["Arctic","Antarctic","Minnesota","Texas","Fairbanks","Southern California","Los Angeles","Phoenix"],"frame_perspective":[],"analysis_type":["climate monitoring","attribution analysis","seasonal forecasting"]},{"id":"climcent-000311","url":"https://climateinsightsdirectory.org/document/climcent-000311","title":"People Exposed to Climate Change: June-August 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-09-17","source_url":"https://assets.ctfassets.net/cxgxgstp8r5d/2G1pYfPOVTc0FiTTwL0oal/c0095bdf7a2ad8b75f132adbfc891936/Climate_Central_report_People_Exposed_to_Climate_Change__June-August_2025.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"Between June and August 2025, human-induced climate change significantly increased global temperatures, with at least 22% of the global population experiencing temperatures at Climate Shift Index (CSI) level 2 or higher every day. Nearly 955 million people faced 30 or more 'risky heat days' added by climate change, with the highest impact seen in Asia. The report also documents severe climate-driven events, including record rainfall and flooding in China, India, Pakistan, and the U.S., as well as historic wildfires in Europe and Canada.","ai_generated":true,"unit":"climcent-000311#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Every day from June 1 to August 31, 2025, at least 1.8 billion people, representing 22% of the global population, experienced temperatures that were at least twice as likely due to climate change (CSI level 2 or higher). Global exposure peaked on July 19, August 10, and August 12, when approximately 4.1 billion people (50% of the population) were affected.","ai_generated":true,"unit":"climcent-000311#insight-1","date_modified":"2026-10-23"},{"text":"Approximately 955 million people experienced 30 or more 'risky heat days' (temperatures above the 90th percentile of 1991-2020 records) added by climate change. Asia was the most affected region, housing 613 million (64%) of these individuals.","ai_generated":true,"unit":"climcent-000311#insight-2","date_modified":"2026-10-23"},{"text":"In 183 out of 240 analyzed countries, the average person experienced at least 30 days where temperatures were strongly influenced by climate change (CSI level 2 or higher). Fifty-three of these countries are in Asia and home to nearly 3.1 billion people.","ai_generated":true,"unit":"climcent-000311#insight-3","date_modified":"2026-10-23"},{"text":"Urban areas were significant hotspots for heat risk; 461 of 940 analyzed global cities saw the average person experience at least 30 days of CSI level 2 or higher heat. Among 39 global megacities (population over 10 million), 23 cities with a combined population of nearly 439 million endured such heat for 30 days or more.","ai_generated":true,"unit":"climcent-000311#insight-4","date_modified":"2026-10-23"},{"text":"Extreme heat led to severe health and societal impacts: over 1,350 schools closed in France, 10,000 people were hospitalized in Japan, and 19 heat-related deaths were reported in South Korea. In Maricopa County, Arizona, public health officials estimated over 400 deaths from extreme heat this season.","ai_generated":true,"unit":"climcent-000311#insight-5","date_modified":"2026-10-23"},{"text":"Climate-driven flooding caused significant casualties and destruction, including at least 1,860 deaths in India and Pakistan due to monsoon rains and flash floods, at least 78 deaths in South Africa, and over 130 deaths in a central Texas flash flood.","ai_generated":true,"unit":"climcent-000311#insight-6","date_modified":"2026-10-23"},{"text":"Europe experienced its worst recorded year for wildfires, with over one million hectares burned, particularly in Italy, Portugal, Romania, and Spain. Canada had its second-worst wildfire season on record, with more than 200 active fires reported in a single day.","ai_generated":true,"unit":"climcent-000311#insight-7","date_modified":"2026-10-23"}],"climate_tags":["extreme heat","urban heat island","flood","wildfire","carbon dioxide emissions"],"geography_discussed":["Asia","Europe","North America","United States","People's Republic of China","India","Pakistan","Japan","South Korea","France","Italy","Spain","Canada","South Africa","Nigeria","Maricopa County"],"frame_perspective":[],"analysis_type":["seasonal analysis","attribution analysis"]},{"id":"climcent-000044","url":"https://climateinsightsdirectory.org/document/climcent-000044","title":"Risky summer heat 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"briefing","language":"en","date_published":"2025-09-16","source_url":"https://www.climatecentral.org/climate-matters/risky-summer-heat-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"Climate Central's analysis for June to August 2025 reveals that at least 22% of the global population experienced temperatures made at least twice as likely by climate change daily. In the U.S., over 21 million people in 32 cities faced 30 or more 'risky heat' days added by climate change, with some cities, such as Honolulu, seeing all their risky heat days attributed to human-caused warming.","ai_generated":true,"unit":"climcent-000044#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Between June 1 and August 31, 2025, at least 1.8 billion people, or 22% of the global population, experienced daily average temperatures that were at least twice as likely because of climate change (CSI level 2 or higher) every single day.","ai_generated":true,"unit":"climcent-000044#insight-1","date_modified":"2026-10-23"},{"text":"In the U.S., the average person experienced approximately 21 days with a strong climate change influence (CSI 2 or higher) during the meteorological summer. In Hawaii, this influence was present nearly every day, totaling 90 out of 92 days.","ai_generated":true,"unit":"climcent-000044#insight-2","date_modified":"2026-10-23"},{"text":"More than 21 million people across 32 U.S. cities experienced 30 or more 'risky heat' days—defined as temperatures hotter than 90% of those recorded locally from 1991-2020—that were added by climate change. The highest number of added risky heat days occurred in West Palm Beach, Florida (49), Anchorage, Alaska (48), Miami, Florida (47), and San Juan, Puerto Rico (46).","ai_generated":true,"unit":"climcent-000044#insight-3","date_modified":"2026-10-23"},{"text":"Climate change was the sole driver of all risky heat days experienced this summer in several U.S. cities, including Honolulu, Hawaii (38 days), McAllen, Texas (24), Houston, Texas (21), and Waco, Texas (9). In 112 U.S. cities, climate change was responsible for at least half of the risky heat days.","ai_generated":true,"unit":"climcent-000044#insight-4","date_modified":"2026-10-23"},{"text":"The U.S. was approximately 0.6°F warmer than the 1991-2020 average from June to August 2025, with 111 out of 247 U.S. cities seeing temperatures at least 1°F warmer than normal.","ai_generated":true,"unit":"climcent-000044#insight-5","date_modified":"2026-10-23"}],"climate_tags":["extreme heat","carbon dioxide emissions","extreme event attribution"],"geography_discussed":["Hawaii","Puerto Rico","West Palm Beach","Anchorage","Miami","San Juan","Honolulu","McAllen","Houston","Waco","Lewiston","Spokane","Missoula","Fresno","Yakima","Salt Lake City","Grand Junction","Bristol"],"frame_perspective":[],"analysis_type":["attribution analysis","statistical assessment"]},{"id":"wwatt-000096","url":"https://climateinsightsdirectory.org/document/wwatt-000096","title":"Extreme fire weather conditions in Spain and Portugal now common due to climate change","publisher":{"name":"World Weather Attribution","organization":"world-weather-attribution"},"document_type":"research paper","language":"en","date_published":"2025-09-04","source_url":"https://www.worldweatherattribution.org/extreme-fire-weather-conditions-in-spain-and-portugal-now-common-due-to-climate-change/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The 2025 fire season in Spain and Portugal saw extreme burned areas, with Spain experiencing its worst fires in 30 years and Portugal burning 260,000 ha. These events coincided with the most intense heatwave on record in Spain. Analysis indicates that a 1.3°C increase in global temperatures since preindustrial times has made these extreme fire-conducive weather conditions approximately 40 times more likely, transforming an event that would have occurred once every 500 years into one expected every 15 years.","ai_generated":true,"unit":"wwatt-000096#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"In 2025, Spain and Portugal experienced severe wildfires that consumed 640,000 hectares, representing approximately 1% of the Iberian Peninsula's surface. Spain's burned area was four times the annual average of the previous two decades, while Portugal's burned area of 260,000 ha was nearly five times its average for that time of year.","ai_generated":true,"unit":"wwatt-000096#insight-1","date_modified":"2026-10-23"},{"text":"The 2025 fires occurred during a record-breaking 16-day heatwave in Spain (3rd–18th August) with a positive anomaly of 4.6 °C, the most intense on record. This heatwave created atmospheric conditions that dried out vegetation rapidly, providing significant fuel for the fires.","ai_generated":true,"unit":"wwatt-000096#insight-2","date_modified":"2026-10-23"},{"text":"Climate change, specifically a 1.3°C warming since preindustrial times, has significantly increased the probability and intensity of the meteorological conditions that drove the 2025 wildfires. These conditions are now expected every 15 years, compared to less than once every 500 years in a 1.3°C cooler climate, representing a 40-fold increase in likelihood and a 30% increase in intensity.","ai_generated":true,"unit":"wwatt-000096#insight-3","date_modified":"2026-10-23"},{"text":"Maximum 10-day temperatures during the fire period are now expected every 13 years due to warming. Without human-induced atmospheric warming, such temperatures would have been extremely rare, occurring less than once every 2,500 years, and would have been 3°C cooler.","ai_generated":true,"unit":"wwatt-000096#insight-4","date_modified":"2026-10-23"},{"text":"Beyond climate drivers, rural depopulation and an ageing population in Spain and Portugal have contributed to the severity of the fires by leaving forest land unmanaged and reducing natural vegetation control from traditional grazing, leading to dense fuel loads.","ai_generated":true,"unit":"wwatt-000096#insight-5","date_modified":"2026-10-23"}],"climate_tags":["wildfire","heat wave","climate change","drought","biodiversity loss"],"geography_discussed":["Galicia","Asturias","Castile and León","Picos de Europa National Park","Gerês National Park","Europe","Greece","Bulgaria","Montenegro","Albania","Italy"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"climcent-000012","url":"https://climateinsightsdirectory.org/document/climcent-000012","title":"Monthly Attribution Overview – August 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-09-03","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-august-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"August 2025 in the United States was generally cooler than normal, with an average anomaly of -0.5°F across 196 cities, though 189 of those cities have shown long-term August warming trends since 1970. Despite the monthly average, 27 cities experienced at least two weeks of Climate Shift Index (CSI) values of 2 or higher, and San Juan, Puerto Rico, saw 28 days at CSI 5, indicating a strong climate change influence on those specific days.","ai_generated":true,"unit":"climcent-000012#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The United States experienced cooler than average temperatures in August 2025, with an average anomaly of -0.5°F across 196 analyzed cities. The Northeast was the most unusually cold region, averaging -2.1°F, and Roanoke, Virginia, was the coldest city at -4.4°F below normal.","ai_generated":true,"unit":"climcent-000012#insight-1","date_modified":"2026-10-23"},{"text":"Despite the cooler August 2025 average, 189 of the 196 analyzed cities have shown long-term warming trends for August since 1970. Reno, Nevada, recorded the most significant increase, with average August temperatures now 11.1°F warmer than in 1970.","ai_generated":true,"unit":"climcent-000012#insight-2","date_modified":"2026-10-23"},{"text":"Climate change significantly influenced temperatures in specific locations during August 2025. Twenty-seven cities had at least two weeks of Climate Shift Index (CSI) values of 2 or higher, with the Southwest region averaging the highest number of such days (20). San Juan, Puerto Rico, experienced 28 days at CSI 5, meaning temperatures on those days were at least five times more likely due to climate change.","ai_generated":true,"unit":"climcent-000012#insight-3","date_modified":"2026-10-23"},{"text":"Eugene, Oregon, was the most unusually hot city in August 2025, recording a temperature 3.9°F warmer than usual.","ai_generated":true,"unit":"climcent-000012#insight-4","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Northeastern United States","Roanoke","Eugene","Reno","San Juan","Southwest","Puerto Rico"],"frame_perspective":[],"analysis_type":["attribution analysis","trend analysis"]},{"id":"climcent-000244","url":"https://climateinsightsdirectory.org/document/climcent-000244","title":"Japan and South Korea endure record-breaking summer heat fueled by climate change - August 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"fact sheet","language":"en","date_published":"2025-08-14","source_url":"https://www.climatecentral.org/climate-shift-index-alert/Japan-and-South-Korea-August-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"Japan and South Korea experienced extreme summer heat in 2025, with Japan recording its hottest June and July in 127 years. The Climate Shift Index (CSI) indicates that human-caused climate change made these events at least five times more likely, with several cities experiencing over a month of CSI level 5 temperatures.","ai_generated":true,"unit":"climcent-000244#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Japan experienced unprecedented heat in 2025, with June being the hottest on record by 2.3C (4.2F) above normal and July 2025 becoming the hottest in the countrys 127-year record, averaging 2.9C (5.2F) above the 1991-2020 average.","ai_generated":true,"unit":"climcent-000244#insight-1","date_modified":"2026-10-23"},{"text":"South Korea recorded its second-hottest July since 1973 with an average temperature of 27.1C (80.7F), and Seoul set a new July record for the number of tropical nights, defined as overnight temperatures remaining above 25C (77F) between 6:01 p.m. and 9 a.m. the next day.","ai_generated":true,"unit":"climcent-000244#insight-2","date_modified":"2026-10-23"},{"text":"Analysis using the Climate Shift Index (CSI) shows that from mid-June to early August, daily average temperatures in Japan and South Korea reached CSI level 5, meaning human-caused climate change made the event at least five times more likely.","ai_generated":true,"unit":"climcent-000244#insight-3","date_modified":"2026-10-23"}],"climate_tags":["heat wave","climate change"],"geography_discussed":["Seoul","Hirakata","Osaka","Shirayamamachi","Sakata","Yeosu","Okayama","Jeju","Asan","Gimpo","Busan"],"frame_perspective":[],"analysis_type":["attribution analysis","temperature monitoring"]},{"id":"climcent-000229","url":"https://climateinsightsdirectory.org/document/climcent-000229","title":"Climate Shift Index Alert","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"fact sheet","language":"en","date_published":"2025-08-05","source_url":"https://www.climatecentral.org/climate-shift-index-alert/SouthwestUS-Mexico-August-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"A forecast for extreme heat across the Southwest U.S. and northern Mexico indicates temperatures up to 18°F above normal, with the Climate Shift Index (CSI) attributing a level 5 likelihood to human-caused climate change. Approximately 53 million people are expected to be affected by these conditions, which are compounded by persistent drought in the region.","ai_generated":true,"unit":"climcent-000229#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The Climate Shift Index (CSI) has reached level 5, the highest possible rating, indicating that human-caused climate change made the forecast extreme heat at least five times more likely.","ai_generated":true,"unit":"climcent-000229#insight-1","date_modified":"2026-10-23"},{"text":"Nearly 53 million people are projected to experience at least one day of these exceptional, climate-driven conditions during the event period.","ai_generated":true,"unit":"climcent-000229#insight-2","date_modified":"2026-10-23"},{"text":"Forecasted daytime highs from August 4 through 8 are expected to be 8°F to 13°F above average for much of the Southwest, southern Plains, and West, with some areas in northern Mexico and Nebraska seeing departures between 15°F to 18°F.","ai_generated":true,"unit":"climcent-000229#insight-3","date_modified":"2026-10-23"},{"text":"Extreme temperatures are expected to reach between 110°F and 116°F in Sonora (Mexico), southern Nevada, southwest Arizona, and Southern California, with elevated nighttime lows between 87°F and 95°F in those same areas.","ai_generated":true,"unit":"climcent-000229#insight-4","date_modified":"2026-10-23"},{"text":"The region is experiencing moderate to exceptional drought, which is drying the Rio Grande Valley and impacting hydropower, international trade agreements, and agriculture.","ai_generated":true,"unit":"climcent-000229#insight-5","date_modified":"2026-10-23"}],"climate_tags":["extreme heat","extreme event attribution","drought","hydropower","climate change"],"geography_discussed":["Arizona","New Mexico","California","Nevada","Utah","Colorado","Texas","Oklahoma","Kansas","Nebraska","Sonora","Chihuahua","Rio Grande Valley"],"frame_perspective":[],"analysis_type":["attribution analysis","weather forecast"]},{"id":"climcent-000121","url":"https://climateinsightsdirectory.org/document/climcent-000121","title":"Monthly Attribution Overview - July 2025","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-08-04","source_url":"https://www.climatecentral.org/report/monthly-attribution-overview-july-2025","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"In July 2025, the United States experienced an average temperature anomaly of 1.4°F across 196 analyzed cities, with the eastern half of the country seeing above-average temperatures. The Ohio Valley was the most unusually hot region, while the West was the only region cooler than normal. Long-term data indicates that 189 of the 196 cities have seen warming trends since 1970, with Reno, Nevada, experiencing the most significant increase. Climate change influence was particularly strong in the Southeast and in San Juan, Puerto Rico, where 19 days reached a Climate Shift Index (CSI) of 5.","ai_generated":true,"unit":"climcent-000121#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"Across 196 analyzed cities in the U.S., the average temperature anomaly for July 2025 was 1.4°F, with 161 cities recording hotter-than-average temperatures.","ai_generated":true,"unit":"climcent-000121#insight-1","date_modified":"2026-10-23"},{"text":"Regional temperature variations were stark: every city in the eastern half of the U.S. experienced above-average temperatures, with the Ohio Valley (including West Virginia, Tennessee, Ohio, Illinois, Missouri, Indiana, and Kentucky) being the most unusually hot region at 2.4°F above normal. Conversely, the West was the only region cooler than normal, averaging 1.36°F below normal.","ai_generated":true,"unit":"climcent-000121#insight-2","date_modified":"2026-10-23"},{"text":"Long-term warming trends since 1970 were observed in 189 of the 196 analyzed cities. Reno, Nevada, showed the most extreme warming, with its average July temperature increasing by 12.5°F since 1970.","ai_generated":true,"unit":"climcent-000121#insight-3","date_modified":"2026-10-23"},{"text":"Climate change significantly influenced temperatures in several areas, as evidenced by the Climate Shift Index (CSI). Forty-six cities had at least two weeks with CSI values of 2 or higher. San Juan, Puerto Rico, recorded 19 days at CSI 5, meaning temperatures on those days were at least five times more likely due to climate change.","ai_generated":true,"unit":"climcent-000121#insight-4","date_modified":"2026-10-23"}],"climate_tags":["extreme event attribution"],"geography_discussed":["Ohio Valley","West","Charlotte","Reno","San Juan","Puerto Rico"],"frame_perspective":[],"analysis_type":["attribution analysis"]},{"id":"climcent-000129","url":"https://climateinsightsdirectory.org/document/climcent-000129","title":"Analysis: The heat burden on child sports in a warming UK from 1970 to today","publisher":{"name":"Climate Central","organization":"climate-central"},"document_type":"report","language":"en","date_published":"2025-07-17","source_url":"https://www.climatecentral.org/report/uk-children-sports-and-heat","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"An analysis of 240 UK cities from 1970 to 2024 shows that 85% have experienced an increase in the average number of days per year exceeding 27°C. In cities such as Cambridge, Luton, and Bedford, the average number of such days rose from 1 per year in the early 1970s to 11-13 per year between 2020 and 2024, with human-caused climate change responsible for the majority of this increase.","ai_generated":true,"unit":"climcent-000129#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The frequency of days exceeding 27°C has increased in the vast majority of the 240 UK cities analyzed. Specifically, 203 cities (85%) now have more days above 27°C on average each year than they did in 1970, and 104 of those cities now experience at least one additional week (7+ days) above this threshold per year compared to the early 1970s.","ai_generated":true,"unit":"climcent-000129#insight-1","date_modified":"2026-10-23"},{"text":"Cities in South East and East England, including Cambridge, Luton, Bedford, Aylesbury, High Wycombe, and Milton Keynes, have seen a significant rise in heat exposure. These cities averaged 1 day per year above 27°C in the early 1970s, increasing to 4-5 days by the early 2000s, and reaching 11-13 days per year in the 2020–2024 period.","ai_generated":true,"unit":"climcent-000129#insight-2","date_modified":"2026-10-23"},{"text":"Human-caused climate change is the primary driver of the increased heat burden. In the highlighted South East and East England cities, climate change has added approximately 7-9 days above 27°C per year compared to the 1970s. In Cambridge specifically, the number of hot days attributed to climate change is now nine times higher than in the early 1970s.","ai_generated":true,"unit":"climcent-000129#insight-3","date_modified":"2026-10-23"}],"climate_tags":["climate change","extreme heat"],"geography_discussed":["Cambridge","Luton","Bedford","Aylesbury","High Wycombe","Milton Keynes","South East England","East of England"],"frame_perspective":[],"analysis_type":["historical trend analysis","attribution analysis"]}]}