The National Climate Assessment is the most influential source of information about climate change in the United States.

Polluted air will remain a threat Friday for millions of Americans across the eastern United States as the Canadian wildfires continue to send smoke billowing across the region, tinging the skies ...

Map Reveals US Areas Most Vulnerable to Extreme Rain Storms Published Dec 26, 2023 at 7:56 AM EST Updated Dec 26, 2023 at 11:59 AM EST ...