{"query_echo":{"q":"","filters":{"analysis_type":["climate modelling"]},"warnings":[{"code":"facet_value_not_in_vocabulary","message":"Value 'climate modelling' for facet 'analysis_type' is not in the controlled vocabulary."}]},"total":{"value":3,"relation":"eq"},"page":1,"page_size":20,"self":"https://climateinsightsdirectory.org/api/v1/search?analysis_type=climate+modelling","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":"cliinstca-000483","url":"https://climateinsightsdirectory.org/document/cliinstca-000483","title":"The case for adapting to extreme heat","publisher":{"name":"Canadian Climate Institute","organization":"canadian-climate-institute"},"document_type":"report","language":"en","date_published":"2023-06","source_url":"https://climateinstitute.ca/wp-content/uploads/2023/06/The-case-for-adapting-to-extreme-heat-costs-of-the-BC-heat-wave.pdf","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The June 2021 heat wave in British Columbia was the deadliest disaster in the province's history, resulting in 619 direct heat-related deaths. The report estimates the societal cost of these lives lost at $5.5 billion using the Value of a Statistical Life (VSL) metric. Beyond mortality, the event caused $12 million in healthcare costs, significant agricultural revenue losses (at least $25 million), and disruptions to electricity and transportation infrastructure. Vulnerabilities were exacerbated by a lack of mechanical cooling in homes, inadequate urban greening, and institutional failures in disaster response and communication. The report argues that without adaptation, heat-related hospitalizations could double by 2030 and annual deaths could average 1,370 by 2030. Key recommendations include updating building codes for mechanical cooling, increasing urban forest canopies, improving weather warning lead times to three days, and implementing independent public reviews of disaster responses.","ai_generated":true,"unit":"cliinstca-000483#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The 2021 heat wave was one of the costliest disasters in British Columbia's history, primarily due to the loss of 619 lives. The economic value of avoiding these deaths is estimated at $5.5 billion based on the Value of a Statistical Life, while direct healthcare costs attributed to the event were $12 million.","ai_generated":true,"unit":"cliinstca-000483#insight-1","date_modified":"2026-10-23"},{"text":"A lack of mechanical cooling in residential buildings was a primary driver of mortality; 98% of deaths and hospital visits during the heat wave were caused by extreme temperature exposure inside buildings. Only 7.4% of those who died had air conditioning in their homes, and only 15% of that group had the cooling active at the time of death.","ai_generated":true,"unit":"cliinstca-000483#insight-2","date_modified":"2026-10-23"},{"text":"Extreme heat caused significant agricultural losses, including the death of approximately 661,000 poultry and a 25% decrease in farmed mussel production. Tree fruit producers lost over $17 million in revenue, and government-subsidized crop insurance payouts for tree fruits reached nearly $12 million.","ai_generated":true,"unit":"cliinstca-000483#insight-3","date_modified":"2026-10-23"},{"text":"Critical infrastructure faced severe strain, including the failure of over 400 electrical transformers and the inoperability of CT and MRI scanners at several hospitals (including Lions Gate, Royal Columbia, and Surrey Memorial) due to cooling system failures.","ai_generated":true,"unit":"cliinstca-000483#insight-4","date_modified":"2026-10-23"},{"text":"Institutional gaps and a lack of coordinated disaster response hindered the effectiveness of the heat wave reaction. Key emergency tools, such as the Provincial Emergency Coordination Centre and the BC Coroners Service Mass Fatality Response Plan, were not activated.","ai_generated":true,"unit":"cliinstca-000483#insight-5","date_modified":"2026-10-23"},{"text":"Workplace safety and productivity were negatively impacted, with heat-related workplace injuries requiring compensation increasing by 180% compared to the previous three-year average. Workers in indoor industries, such as restaurant kitchens and warehouses, accounted for over a third of heat stress claims in 2021.","ai_generated":true,"unit":"cliinstca-000483#insight-6","date_modified":"2026-10-23"},{"text":"Future projections indicate that without adaptation, heat-related hospitalizations in B.C. could reach nearly 6,000 per year by 2030, costing at least $100 million annually. Annual heat-related deaths could average 1,370 by 2030, with a societal cost of $12.2 billion per year.","ai_generated":true,"unit":"cliinstca-000483#insight-7","date_modified":"2026-10-23"},{"text":"Adaptation measures such as doubling the rate of mechanical cooling uptake could reduce heat-related deaths by 12% by 2030 and hospitalizations by approximately 40% in the 2030s, saving $20 million per year in healthcare costs.","ai_generated":true,"unit":"cliinstca-000483#insight-8","date_modified":"2026-10-23"},{"text":"Urban greening in the Lower Mainland could reduce heat-related deaths by 12% in the 2030s, equating to a reduction in societal costs of about $1 billion per year, although these benefits take decades to materialize as trees mature.","ai_generated":true,"unit":"cliinstca-000483#insight-9","date_modified":"2026-10-23"},{"text":"Analysis of weather station data suggests that temperature forecasts are sufficiently accurate to provide public heat warnings three days in advance, which would only result in a 15% increase in false alarms compared to the current one-to-two-day notice.","ai_generated":true,"unit":"cliinstca-000483#insight-10","date_modified":"2026-10-23"}],"climate_tags":["extreme heat","climate change adaptation","heat wave","public health","urban heat island","Resilience (power system)","agricultural production","food security","disaster risk reduction","climate finance","building code"],"geography_discussed":["Lower Mainland","Vancouver","Lytton","Canada","Ontario","Whitehorse","Washington"],"frame_perspective":[],"analysis_type":["economic impact assessment","cost-benefit analysis","vulnerability assessment","climate modelling"]},{"id":"wwatt-000064","url":"https://climateinsightsdirectory.org/document/wwatt-000064","title":"Rapid attribution of the extreme rainfall in Texas from Tropical Storm Imelda","publisher":{"name":"World Weather Attribution","organization":"world-weather-attribution"},"document_type":"research paper","language":"en","date_published":"2019-09-27","source_url":"https://www.worldweatherattribution.org/rapid-attribution-of-the-extreme-rainfall-in-texas-from-tropical-storm-imelda/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The study finds that the extreme two-day rainfall during Tropical Storm Imelda in September 2019 was made more likely and more intense by anthropogenic climate change. Observational data suggests the probability of such an event has increased by a factor of 2.6 since 1900, while climate model synthesis indicates a probability increase of 1.5 to 3.1 times and an intensity increase of 9% to 21%. The report also notes that rapid urban expansion and loss of impervious cover in Southeast Texas have exacerbated flooding risks for approximately 6.6 million people in the impacted counties.","ai_generated":true,"unit":"wwatt-000064#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The two-day precipitation recorded on 19–20 September 2019 during Tropical Storm Imelda was extreme, with a local return time of approximately 1200 years at the station with the highest rainfall total. However, the regional return time for such an event occurring at any of 85 stations along the U.S. Gulf Coast is lower, at about 1 in 50 years.","ai_generated":true,"unit":"wwatt-000064#insight-1","date_modified":"2026-10-23"},{"text":"Statistical analysis of observations indicates that the probability of such extreme rainfall has increased by a factor of 2.6 (range 1.6 to 5.0) since 1900, which corresponds to an 18% (range 11% to 28%) increase in rainfall intensity for such an event.","ai_generated":true,"unit":"wwatt-000064#insight-2","date_modified":"2026-10-23"},{"text":"High-resolution climate models (EC-Earth 2.3 and HiFLOR) suggest that anthropogenic climate change has made two-day extreme precipitation events as intense as those seen during Imelda 1.6 to 2.6 times more likely, or 9% to 17% more intense.","ai_generated":true,"unit":"wwatt-000064#insight-3","date_modified":"2026-10-23"},{"text":"A synthesis of both observational and model data concludes that the probability of two-day rainfall as intense as the maximum observed during Imelda increased by a factor of 1.5 to 3.1, representing an intensity increase of 9% to 21%.","ai_generated":true,"unit":"wwatt-000064#insight-4","date_modified":"2026-10-23"},{"text":"Climate change, combined with sea level rise and rapid urban expansion characterized by a loss of impervious cover, has led to more frequent and intense flooding in coastal Southeast Texas, where an estimated 6.6 million people live in the counties impacted by Imelda.","ai_generated":true,"unit":"wwatt-000064#insight-5","date_modified":"2026-10-23"},{"text":"Following Hurricane Harvey, Texas implemented several risk-reduction measures, including a hazard disclosure law, the creation of the Flood Infrastructure Fund (nearly $1.7 billion) and the Texas Infrastructure Resiliency Fund ($1.6 billion), and the development of a statewide flood plan via SB8.","ai_generated":true,"unit":"wwatt-000064#insight-6","date_modified":"2026-10-23"}],"climate_tags":["anthropogenic climate change","tropical cyclone","flood","sea level rise","urbanization","climate modeling","Flood risk management","extreme event attribution"],"geography_discussed":["Houston","Beaumont","Louisiana"],"frame_perspective":[],"analysis_type":["rapid attribution","statistical analysis","climate modelling"]},{"id":"wwatt-000047","url":"https://climateinsightsdirectory.org/document/wwatt-000047","title":"southeast-brazil-drought-2014-2015","publisher":{"name":"World Weather Attribution","organization":"world-weather-attribution"},"document_type":"research paper","language":"en","date_published":"2015-09-10","source_url":"https://www.worldweatherattribution.org/southeast-brazil-drought-2014-2015/","generator":"Climate Insights Directory","generated_fields":["summary","key_insights","climate_tags","geography_discussed","analysis_type"],"summary":{"text":"The study investigates the 2014/15 drought in southeast Brazil, specifically focusing on the impacts in São Paulo. Using a multi-method approach including historical observations and climate model simulations, the researchers found limited evidence that human-induced greenhouse gas emissions increased the hydrometeorological hazard. Instead, the severe impacts on water supply were primarily attributed to rapid population growth and increased water consumption.","ai_generated":true,"unit":"wwatt-000047#summary","date_modified":"2026-10-23"},"key_insights":[{"text":"The drought in southeast Brazil from January 2014 to February 2015 was characterized by a complete absence of South Atlantic convergence zone (SACZ) episodes during the summer of 2014.","ai_generated":true,"unit":"wwatt-000047#insight-1","date_modified":"2026-10-23"},{"text":"The 2014/15 drought caused severe water shortages in São Paulo; the Cantareira water supply system dropped to 5% of its capacity by January 2015, reducing the number of people it supplied from 8.8 million to 5.3 million.","ai_generated":true,"unit":"wwatt-000047#insight-2","date_modified":"2026-10-23"},{"text":"Observational data indicates that the 2014/15 precipitation deficit of 435 mm has a return period of approximately 20 years, and that dry extremes in the region showed a barely significant decrease up to 2013.","ai_generated":true,"unit":"wwatt-000047#insight-3","date_modified":"2026-10-23"},{"text":"Simulations using the weather@home framework suggest that anthropogenic greenhouse gas emissions have actually made dry precipitation extremes less likely in southeast Brazil, shifting a 1-in-20-year event to approximately a 1-in-30-year event.","ai_generated":true,"unit":"wwatt-000047#insight-4","date_modified":"2026-10-23"},{"text":"There was no detectable change in the difference between precipitation and evaporation (P − E) due to human-induced climate change, as an increase in evaporation cancelled out the increase in precipitation.","ai_generated":true,"unit":"wwatt-000047#insight-5","date_modified":"2026-10-23"},{"text":"While CMIP5 ensemble simulations showed an increase in the risk of low precipitation (with FARs greater than 0.167), they confirmed the null result for P − E.","ai_generated":true,"unit":"wwatt-000047#insight-6","date_modified":"2026-10-23"},{"text":"The study concludes that the 2014/15 event's large impact was likely driven by accelerated population growth and changes in water use rather than an increase in hydrometeorological hazard from human-induced emissions.","ai_generated":true,"unit":"wwatt-000047#insight-7","date_modified":"2026-10-23"},{"text":"The drought was associated with a public health impact in São Paulo, where dengue cases tripled in 2015 compared to 2014.","ai_generated":true,"unit":"wwatt-000047#insight-8","date_modified":"2026-10-23"}],"climate_tags":["drought","precipitation","anthropogenic climate change","water-supply management","water-management","greenhouse gas emissions"],"geography_discussed":["São Paulo"],"frame_perspective":[],"analysis_type":["attribution study","climate modelling"]}]}