Early disappearance of winter snowpack can have a major impact on spring and summer water supplies for people, ecosystems, and agriculture.
February 2021 was the 16th-warmest February on record, and it concluded the 8th-warmest Northern Hemisphere winter season on record.
NOAA climate experts are working on the latest update to the U.S. Climate Normals. Here’s a sneak peak at how what’s normal for winter will change.
A single sensor deployed on a light-rail public train could provide as much information about the city's carbon dioxide emissions as 30 stationary monitoring stations, at a fraction of the cost.
2020 was the second-warmest year on record for the globe overall, and land areas were record warm.
Unusually big blooms of tiny ocean plants occurred in the Arctic this past summer, linked to early summer retreat of sea ice.
August sea surface temperatures in the Arctic are rising by as much as 1 degree Celsius (1.8 degrees Fahrenheit) per decade.
The large, warm pool of ocean water in the Indian and west Pacific Oceans has been growing warmer and expanding in size since 1900, impacting the Madden Julian Oscillation and regional rainfall.
Despite a few cold spots, it was the the second-warmest year on record Arctic wide. Since 2000, Arctic temperatures have been more than twice as far above average as the planet as a whole.
Between September 2019 and August 2020, the rate of ice loss from the Greenland Ice Sheet was much lower that the record set the previous 12-month period, but but still above the 2002–2020 average. Overall, Greenland continues to lose ice.