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Climate Central analysis shows that human-caused climate change significantly increased the number of days with maximum temperatures exceeding 90°F in West Africa's cocoa belt from 2015 to 2024. The most severe impacts occurred in Côte d'Ivoire and Ghana, where climate change added approximately 40 days of growth-limiting heat per year. These temperature extremes, combined with shifting rainfall patterns and pests, threaten global cocoa supplies, increase chocolate prices, and endanger the health and livelihoods of small-scale farmers.

Analysis of 30 NFL home cities from 1970 to 2024 shows that all have warmed during the regular season (September to December), with an average increase of 2.8°F. Las Vegas and Minneapolis experienced the highest warming, while the 30 cities now face an average of 14 more extremely hot days than in 1970, increasing risks for athletes during summer training.

Campinas, Brazil, launched its Local Climate Action Plan (PLAC) in June 2024, aiming for net-zero greenhouse gas emissions by 2050. The plan utilizes an integrated approach that connects climate priorities with social inclusion and nature, supported by a roadmap of approximately 130 short-term activities to ensure feasibility through 2032. To avoid governance gaps, the city established the Municipal Committee for Coping with Climate Change Impacts, which includes deliberative, consultative, and participative groups. Key immediate priorities include expanding 150 km of cycling infrastructure by 2030 and aligning climate targets with the 2026–2029 Multi-Year Plan (PPA) budget cycle.

The report evaluates the "Freetown the Treetown" initiative, which aims to plant millions of trees to combat deforestation and climate change in Freetown. Using Sustainable Asset Valuation (SAVi), it analyzes two scenarios for planting trees by 2050, projecting significant net discounted benefits between USD 21.68 million and USD 26.45 million. The primary benefits include avoided infrastructure damage from natural hazards, job creation, and reduced loss of life, with a societal return of over USD 2 for every USD 1 invested.

Climate change in Illinois is manifesting as increased precipitation, rising temperatures, and intensified summer droughts, leading to significant infrastructure damage and public health risks. Since the 20th century, average annual precipitation has risen by 12-15%, while extreme events have increased by 40%, causing frequent flooding and sewage overflows in cities like Chicago. Rising temperatures are most pronounced in winter, with a predicted average increase of up to 9°F by 2100, which threatens agricultural yields—potentially reducing corn yields by 23-34% by mid-century—and necessitates an estimated $6.1 billion for school air conditioning by 2025. Additionally, intensified summer droughts threaten crop yields and river navigation, notably impacting barge transportation on the Mississippi River, while increasing the risk of wildfires and health issues from Canadian wildfire smoke.

Maryland is experiencing accelerating climate risks, including rising sea levels, more frequent extreme precipitation, intensified droughts, and increasing temperature extremes. These changes are causing significant land loss, infrastructure damage, and public health crises, necessitating costly adaptation measures such as seawalls, flood-proofing, and cooling systems.

The report details how climate change is accelerating in Nevada, leading to increased drought, extreme heat, and erratic precipitation. It outlines the resulting economic burdens, including the costs of wildfire suppression, water conservation efforts to protect Lake Mead, and the need for infrastructure upgrades to mitigate flooding and heat-related health risks.

The report details how climate change is increasing the frequency and severity of extreme weather in New Hampshire, leading to significant infrastructure damage and economic losses. It highlights a 12% increase in annual precipitation since 1901, a 2°F rise in average annual temperature since 1971, and a 7-inch rise in sea level since 1950. The document outlines necessary adaptation costs across public health, infrastructure, and local planning to mitigate risks to the state's winter recreation industry, coastal properties, and public school systems.

The report finds that global warming of 0.3°C since 2015 has already increased the annual average of hot days by 11 per country. While current emissions pledges have reduced projected warming from 4°C to 2.6°C, the latter would still result in an average of 57 additional hot days per year compared to today. Case studies of six major heat events show that some would have been nearly impossible without climate change, and all have increased in intensity and likelihood. The document argues that while heat early warning systems have expanded, adaptation finance and systemic urban and labor reforms are insufficient to meet the escalating risks.

The document details the engagement of Mexico within the Inter-American Institute for Global Change Research (IAI), highlighting specific research projects on extreme heat in Mexico City, the participation of Mexican scientists in IAI advisory committees, and the availability of the Science, Technology and Policy (STeP) Fellows program for public officials.

The iCRA project (January 2025–December 2026) seeks to strengthen the evidence base for intersectional approaches to climate change adaptation. By piloting intersectional climate risk assessments (CRAs) in Nepal and South Africa, the project analyzes how overlapping systems of inequity—such as racism, ableism, and caste-based discrimination—influence vulnerability to climate hazards. The project utilizes knowledge co-production with partners serving marginalized groups to generate recommendations for policy-makers and practitioners.

The report finds that human-induced climate change significantly increased the frequency and intensity of extreme heat globally from May 2024 to May 2025, affecting billions of people and making all 67 identified significant heat events more likely. It highlights the disproportionate impact on vulnerable populations and the systemic failure to accurately document heat-related mortality, while advocating for a combination of urban heat action plans and aggressive fossil fuel mitigation.

The document reports that human-induced warming of 1.3°C contributed to record-breaking temperatures, floods, and droughts in 2024, resulting in thousands of deaths and millions of displacements. It highlights that climate change added an average of 41 dangerous heat days globally and often overrode natural phenomena like El Niño. The report calls for a rapid transition from fossil fuels, improved early warning systems, real-time heat death reporting, and increased finance for developing countries to support adaptation.

In October 2024, 185 of 191 analyzed U.S. cities were warmer than normal, with the Southwest experiencing particularly high anomalies. The report highlights that 19 cities saw their hottest October on record and identifies specific states, including Texas, Arizona, and New Mexico, where climate change significantly increased the likelihood of extreme temperatures as measured by the Climate Shift Index.

The document explores the 'climate-crime nexus,' detailing how environmental stresses drive rural petty crime, urban violence, drug use, gender-based violence, hate crimes, trafficking, and white-collar crime. It highlights how climate-induced economic collapse and extreme heat increase desperation and aggression, while the green transition creates new opportunities for organized crime and corruption.

Between October 1 and 6, 2024, over 120 million people in Japan experienced unusual heat that was made at least 3 times more likely by human-caused climate change. At least 74 cities recorded temperatures of 30°C or higher, with conditions 5°C to 8°C above the 1991-2020 average. The analysis uses the Climate Shift Index (CSI), noting that 259 cities reached CSI level 3, while some cities like Kusatsu, Toyota, and Miyazaki reached CSI level 5, indicating an exceptional climate change event. The document also notes broader impacts of extreme heat in Japan, including a record 252 deaths in Tokyo from a summer heat wave, reduced agricultural output for vegetables, dairy, and fish, and delayed peak fall foliage in northern and eastern regions.

The document examines the unique vulnerabilities of older people to climate change, noting that by 2050 up to 250 million older adults may face dangerously high temperatures. It highlights a lack of binding international agreements to safeguard their rights and references a 2024 European Court of Human Rights ruling regarding the Swiss Parliament's failure to protect older women. The paper concludes that older adults are a vital resource for climate action due to their economic power and local environmental knowledge.

Analysis by Climate Central indicates that June-August 2024 was the hottest season on record, with carbon pollution significantly increasing the frequency and intensity of risky heat days globally and in the U.S. Approximately 2 billion people worldwide experienced 30 or more risky heat days made at least three times more likely by climate change. In the U.S., the average person experienced 20 additional risky heat days, with the highest impacts concentrated in the South, Southeast, and Southwest, particularly in Florida and Puerto Rico.

The report finds that June through August 2024 was Earth's hottest season on record, with human-induced climate change significantly increasing the frequency and intensity of extreme heat worldwide. Using the Climate Shift Index (CSI), the analysis shows that one in four people experienced temperatures made at least three times more likely by climate change every day of the season. Global exposure peaked on August 13, 2024, affecting 4.1 billion people. The average person experienced 17 additional 'risky heat days' (temperatures above the 90th percentile) due to climate change. Over 2 billion people experienced 30 or more such days, with extreme concentrations in the Caribbean, Western Asia, Micronesia, Northern Africa, and Southern Europe. Additionally, 72 countries experienced their hottest June-August period since 1970, and 180 Northern Hemisphere cities faced dangerous extreme heat waves that were, on average, 21 times more likely due to human-caused warming.

The document reports a significant increase in voter registration among young people and people of color in the U.S. following Joe Biden's withdrawal from the 2024 race. It highlights that while economic issues are a primary priority for Generation Z, climate change is a critical driver, particularly for women of color and voters in swing states. The briefing provides guidance for reporters to explore how climate justice and environmental concerns are influencing the electoral behavior of this demographic.