Decades of independent observations and improved methods strengthen the evidence that greenhouse gases are changing Earth’s ...

Duration and frequency data are based on an analysis of 50 metropolitan areas in the United States. Years included in the 2020s are 2020 and 2021. Data are from the Environmental Protection Agency. An ...

The Supreme Court is weighing whether cities can sue oil companies to recover costs for problems caused by climate change ...

Global food prices have seen huge fluctuations in recent years, soaring to record highs in 2022 before dropping in 2023 and rising again slowly this year. Extreme weather events, geopolitical conflict ...

The U.S. Supreme Court heard oral arguments surrounding Boulder's 2018 lawsuit against Suncor and ExxonMobil, with Marshall Fire survivors in attendance.

Climate change is a global emergency that touches every human on this planet. But its effects hit some people harder than others. People in low- and middle-income countries, coastal areas, river ...

BOULDER − Maddison Schink remembers getting her grandmother's phone call as hurricane force winds whipped a wildfire through ...

Extreme heat and flooding are accelerating the deterioration of bridges, engineers say, posing a quiet but growing threat. By Coral Davenport Coral Davenport has reported on climate change policy and ...