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As climate changes, how do Earth's frozen areas affect our planet and impact society?
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![Sea ice is forming in a fjord in Svalbard. Credit: Alia Khan, NSIDC Sea ice is forming in a fjord in Svalbard. Credit: Alia Khan, NSIDC](/sites/default/files/styles/content_wwo_desktop/public/images/SvalbardSeaIce_2.jpg.webp?itok=5IR3UoH4)
News Release
Arctic sea ice has likely reached its minimum extent for the year, at 3.74 million square kilometers (1.44 million square miles) on September 15, 2020, according to scientists at the National Snow and Ice Data Center (NSIDC) at the Unive
![Kevin Schaefer stands above melting ground ice in front of the Alaska pipeline on the North Slope. Credit: Roger Michaelides. Kevin Schaefer stands above melting ground ice in front of the Alaska pipeline on the North Slope. Credit: Roger Michaelides.](/sites/default/files/styles/content_wwo_desktop/public/images/KSchaefer_AK_Cred_RMichaelides_2.JPG.webp?itok=n7tg--lx)
Spotlight
The concentration of mercury in fish in Alaska’s Yukon River may exceed EPA mercury criterion by 2050 if greenhouse gas emissions that cause global warming are not constrained, according to new scientific research led by the National Snow and Ice
![Figure 4 Figure 4](/sites/default/files/styles/content_wwo_desktop/public/images/Other/Figure4.png.webp?itok=QgFKDfzm)
Ice Sheet Analysis
Melting through the peak of Greenland’s summer melt season has been well above the 1981 to 2010 average, but below the levels of many previous summers of the past decade.
![Hopi corn. Credit: Michael Kotutwa Johnson, Native American Agriculture Fund Hopi corn. Credit: Michael Kotutwa Johnson, Native American Agriculture Fund](/sites/default/files/styles/content_wwo_desktop/public/images/HopiCorn_Michael%20Kotutwa%20Johnson_2.jpg.webp?itok=cFJTLUwi)
Spotlight
How is coronavirus disease 2019 (COVID-19) affecting Indigenous Peoples’ access to food?
![Mark Serreze conducts research on the St. Patrick Bay Ice Caps as a graduate student in the early 1980s. Mark Serreze conducts research on the St. Patrick Bay Ice Caps as a graduate student in the early 1980s.](/sites/default/files/styles/content_wwo_desktop/public/images/MSEllsmereIsland_5.jpeg.webp?itok=R0JXjkvc)
Spotlight
The St. Patrick Bay ice caps on the Hazen Plateau of northeastern Ellesmere Island in Nunavut, Canada, have disappeared, according to NASA satellite imagery.
![Spring in the Arctic Spring in the Arctic](/sites/default/files/styles/content_wwo_desktop/public/images/fullsizeoutput_28c4_3.jpeg.webp?itok=vtQ5SxGw)
Feature Story
NSIDC researcher Julienne Stroeve returned to land from the Arctic expedition called Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) at the beginning of April. Upon her return, we sat down to discuss her trip, research, and how her expectations turned out. This is the second part of her MOSAiC story.