The seasonal Antarctic ozone hole was the smallest on record in 2019, thanks to a warmer-than-average September.
Extreme Events
Flash drought engulfs the U.S. Southeast in September 2019
October 9, 2019
A collection of links to the latest NOAA updates on Hurricane Dorian.
If you missed our August 29 tweet chat, here's the transcript. Read what the fire and smoke experts had to say about the FIREX-AQ field campaign and its mission to study what's in the smoke from wildfires and agricultural burning.
Europe's rogue heatwave melts Greenland
August 14, 2019
With specially designed sensors mounted on their own cars, volunteers in each city will drive pre-planned routes, recording heat and humidity as they go. Scientists will stitch their results into a detailed map showing the hottest parts of each city.
From extreme heat to infectious diseases, the impacts of human-caused global warming are a threat to human lives. According to the latest National Climate Assessment, thousands of lives could be saved in the U.S. by reducing greenhouse gases and improving resilience to climate change.
On Friday, July 19, four heat health experts answered questions in an extreme heat tweet chat hosted by Climate.gov. We've posted a transcript of their responses.
Extreme precipitation events have grown more frequent since the start of the twentieth century, and such events are likely to become even more frequent over the twenty-first.