Like all other seasons, spring is getting warmer across the U.S. Spring warming can prolong seasonal allergies, worsen wildfire risk, and limit snow-fed water supplies. Climate Central analyzed ...

The coldest time of year is shrinking in 195 U.S. cities — getting nine days shorter on average compared to 1970-1997.

According to the latest NOAA data, 2025 was Earth’s third-warmest year since records began in 1850. Global average temperatures in 2025 were 1.3°C (2.4°F) above pre-industrial (1850-1900) levels.

Using Climate Central’s Climate Shift Index (CSI) tool to measure the impact of climate change on daily temperatures across the United States, as well as NOAA’s Applied Climate Information System ...

The Climate Shift Index (CSI), Climate Central’s daily temperature attribution system, applies the latest peer-reviewed methodology to map the influence of climate change on temperatures across the ...

Food accounts for about one-quarter of all human-caused heat-trapping pollution. Meanwhile, extreme events fueled by our warming climate are impacting every stage of the food supply chain and driving ...

Meteorological winter (December, January, February) is the fastest-warming season for most of the U.S. Locations across the Northeast and the Great Lakes region have seen some of the highest rates of ...

Climate Central created Climate Change: Key Facts, a free slide deck available in English and Spanish, using our library of Climate Matters content — all of which is reviewed by staff scientists in ...

Read the full report: Running Out of Cool Days: How climate change is decreasing the odds of optimal marathon conditions Researchers have found there is a “sweet spot” for marathon temperatures where ...

This Climate Matters analysis is based on open-access data from the National Oceanic and Atmospheric Administration (NOAA). See Methodology for details. Fall warming can also delay the first freeze of ...

This Climate Matters analysis is based on open-access data from the U.S. Environmental Protection Agency (EPA) and the National Oceanic and Atmospheric Administration (NOAA) Western Regional Climate ...

This summer’s heat is likely to linger through fall with above-normal temperatures expected across the U.S. from September through November. This year is not an exception. It’s part of a longer ...