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The analysis finds a very weak correlation between a country's institutional readiness and its citizens' perceived personal preparedness for extreme weather. While some countries like Vietnam show high levels of both, others like Armenia have high institutional readiness but low personal preparedness, and the Philippines shows high personal preparedness despite lower institutional readiness. The study emphasizes that climate resilience requires tailored strategies based on these distinct gaps, noting that 48 of the 68 examined countries rank in the bottom half of global institutional readiness.

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.

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.

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.

January 2026 was the fifth-warmest January on record globally, characterized by significant temperature anomalies in the U.S. West and record-low snowpacks in several states. The document highlights the transition of NOAA to the Relative Oceanic Niño Index (RONI) to better account for climate change in ENSO tracking. Attribution analysis using the Climate Shift Index (CSI) indicates that extreme warmth in the northern U.S. and specific cities like San Juan and Honolulu was strongly driven by carbon pollution.

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.

In 2025, the contiguous U.S. experienced its fourth-warmest year on record and 23 billion-dollar weather and climate disasters, totaling $115 billion in damages. Globally, 2025 was the third-warmest year since 1850, with NOAA data indicating it was approximately 1.3°C warmer than the pre-industrial average. The year was marked by record-breaking December heat in the U.S. Southwest and devastating atmospheric river flooding in Washington and Oregon.

Analysis of 244 U.S. cities shows that winters are the fastest-warming season for most of the country, with average temperatures increasing by 3.9°F since 1970. This trend is characterized by fewer freezing nights, shorter cold streaks, and a significant increase in warmer-than-normal winter days, particularly in the Northeast and Upper Midwest. These changes threaten mountain snowpack, crop yields for the $27 billion fruit and nut industry, and the winter recreation economy, while potentially increasing pest-related health risks and allergy durations.

The document details how the MAGA administration is using public lands for immigration enforcement through mass surveillance and militarization. It highlights specific executive orders, proposed legislation like the FLASH Act, and the transfer of public land jurisdiction to the U.S. Army. The report also criticizes the operation of a detention center in the Big Cypress National Preserve and the construction of a border wall in the Coronado National Forest, arguing these actions violate environmental laws and tribal sovereignty while enriching private contractors.

The document details how executive orders and proposed legislation are being used to install surveillance technology in public parks and transfer land jurisdiction to the U.S. Army for border enforcement. It highlights the impact of these policies on civil liberties, indigenous sovereignty, and environmental conservation, specifically citing the Everglades detention center and the San Rafael Valley border wall.

The Union of Concerned Scientists analyzed nearly eight million affordable homes and found that 79.1% were located in counties experiencing at least one week's worth of heat alerts in 2024. The report highlights that people of color, older adults, and individuals with disabilities are disproportionately affected due to substandard housing, the urban heat island effect, and energy insecurity. Key recommendations include increasing funding for the Low-Income Home Energy Assistance Program (LIHEAP), implementing cooling inspection standards for subsidized homes, and updating building codes to improve heat resilience.

The Union of Concerned Scientists analyzed the intersection of the housing crisis and extreme heat, finding that residents of affordable housing—particularly people of color, older adults, and people with disabilities—face significant risks. Analysis of 2024 heat alerts shows that the highest shares of exposed affordable housing are in the Northeast and Southeast, while Texas, California, and New York have the highest total number of exposed homes. The report advocates for increased investment in climate-resilient affordable housing and the expansion of the Low-Income Home Energy Assistance Program to improve cooling and building efficiency.

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.

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.

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.

The document details the widespread groundwater contamination caused by coal ash at U.S. power plants, where 91 percent of plants exceed federal safe standards. It highlights the dangers of 'sham recycling'—specifically using coal ash as soil fill—and contrasts this with legitimate encapsulation in concrete and gypsum. The testimony criticizes the Trump administration's efforts to cede enforcement to states and weaken federal regulations, while providing evidence that 'closure by removal' of ash ponds leads to significant water quality improvements and economic benefits for local communities.

The report identifies critical failure modes in ground-mount solar PV systems exposed to extreme winds, such as the failure of top-down clamps and low-cycle fatigue in module frames. It recommends high-load modules (4,000 Pa uplift), through-bolting with specialized washers, and dual-post foundation designs to improve survivability in hurricane-prone regions.

The report examines the vulnerabilities of the US power grid to climate change, highlighting how extreme heat, wildfires, winter storms, and hurricanes cause widespread outages. It argues that current planning focuses on reliability under typical conditions rather than resilience to high-impact, low-frequency events. The authors emphasize that structural inequities, such as the legacy of redlining, leave low-income communities and people of color disproportionately vulnerable to the life-threatening consequences of power loss. The document recommends that regional transmission organizations (RTOs) and independent system operators (ISOs) adopt forward-looking climate risk assessments, integrate energy justice principles, and reform economic metrics like the Value of Lost Load (VOLL) to prioritize human vulnerability over economic activity.

A growing number of US communities and governments are suing fossil fuel companies, arguing they misled the public about climate change. These 'polluter pays' cases seek compensation for climate damages, mirroring the 1990s tobacco litigation. While most cases are in the US, a significant case in Peru involving RWE highlights global implications. The fossil fuel industry is responding with lobbying for legal immunity and efforts to discredit litigants, though some cases, such as Honolulu v. Sunoco LP, are advancing toward trial.

In April 2025, 182 out of 191 analyzed U.S. cities were warmer than normal, with an average temperature anomaly of 2.1°F. The Southeast region experienced the most significant anomalies and the highest number of days with a Climate Shift Index (CSI) of 2 or above, indicating temperatures at least twice as likely to occur due to climate change. Shreveport, Louisiana, recorded the highest anomaly at 6.33°F, while Reno, Nevada, showed the fastest long-term April warming since 1970, increasing by 8.0°F.