Permafrost


How Alaska’s Recent Heat Wave May Worsen Climate Warming

, Kendall Science Fellow

Over the holiday weekend, three cities in Alaska experienced record heat with temperatures in Anchorage reaching 90°F. In a city where local July temperatures averaged 61°F in 2018, this extreme heat illustrates the dramatic effects of climate change in northern regions of the world. These record-breaking temperatures, however, could further intensify climate warming by priming Alaskan landscapes to release carbon and heat-trapping gases in two major ways. Read more >

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Winning at Climate Change: an Arctic and Boreal Story

, Kendall Science Fellow

Climate change is definitely not a competition, but if it were, arctic tundra and boreal forests would be crushing it by getting hotter and changing faster than the rest of the world. Read more >

NASA
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An old whaling site on Svalbard, Norway. Photo: Adam Markham

Rapid Warming is Creating a Crisis for Arctic Archaeology

, Deputy director, Climate & Energy

There are at least 180,000 archaeological sites in the Arctic. Many are already being lost to climate change – virtually all of them are vulnerable. Read more >

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Thawing Permafrost: Why It Matters

, senior climate scientist

In these recent hot summer days, as my colleague Xinnan Zhu was walking outside exposed to the outdoor temperature of nearly 100°F, she felt like she was going to melt like an ice cube under the sun. Read more >

Photo by Xinnan Zhu
International Permafrost Association, 1998. Circumpolar Active-Layer Permafrost System (CAPS), version 1.0.
Figure created by Xinnan Zhu in July, 2016.
NASA GISS data.giss.nasa.gov/gistemp/maps
Figure created by Xinnan Zhu from data in IPCC AR5
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