Search Climate Signals
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Sea ice grows throughout the fall and winter, and melts throughout the spring and summer. But not all Arctic sea ice melts; some portion of the ice survives at least one melt season, persisting throughout the summer months.
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Last month was the 13th-coolest April in 124 years of recordkeeping for the contiguous U.S., according to the monthly climate roundup released on Tuesday by NOAA. Canada likely experienced one of its coldest Aprils on record, although the verdict is not yet available from Environment Canada.
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Climate science at a glance
For the fourth consecutive year, tropical storm activity began early in the Atlantic in 2018, with the formation of Tropical Storm Alberto on May 25.
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In four of the past five winters, the North Pole has witnessed dramatic temperatures spikes, which previously were rare. Now, in the lead up to summer, the temperature has again shot up to unusually high levels at the tip of the planet.
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Utah has traditionally been safe from Lyme and many other insect-borne diseases, thanks to its long, cold winters — but appears to be changing.
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Climate science at a glance
The fingerprint of anthropogenic warming has been formally identified in heat extremes over the western U.S.[1]
In the US, western regions set the most records for the n
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From a stone hut perched on the edge of the glacial lake Palcacocha, 14,980 feet above sea level, Juan Victor Morales radios down to a dispatcher in the city of Huaraz below. He is all that stands between the city and disaster.
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Florida’s mangroves have been forced into a hasty retreat by sea level rise and now face being drowned, imperiling coastal communities and the prized Everglades wetlands, researchers have found.
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High temperatures are forecast to reach the mid-80s this week in New York, and I’m dreading it. But I have a plan to stay cool: just thinking of how much hotter it is in Pakistan, which is in the middle of a blistering heat wave.
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On Alaska’s West Coast, the feeble April sun is shining this week on a fresh spot of open water. The sea ice found there for ages every spring is gone.
