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Articles sur Thawing permafrost

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Giovanna Stevens grew up harvesting salmon at her family’s fish camp on Alaska’s Yukon River. Climate change is interrupting hunting and fishing traditions in many areas. AP Photo/Nathan Howard

Arctic Report Card 2023: From wildfires to melting sea ice, the warmest summer on record had cascading impacts across the Arctic

The early heat melted snow and warmed rivers, heating up the land and downstream ocean areas. The effects harmed salmon fisheries, melted sea ice and fueled widespread fires.
Polygon fields evolve and change overtime reflecting the flow of water at different stages in planetary history. Axel Heiberg Island, Qikiqtani Region, Nvt. (Mark Jellinek, Author Provided)

How Arctic landscapes and Canadian cityscapes share a similar pattern

While a seemingly remote and unfamiliar landscape, the Arctic shares many surprising similarities with contemporary Canadian cityscapes.
The Denali Highway as it crosses the Susitna River. Joe Sohm/Visions of America/Universal Images Group via Getty Images

Infrastructure bill passed by Congress promises billions for bridge repair – rural Alaska shows the growing need as temperatures rise

Alaska is warming faster than any other U.S. state, and that’s causing problems, a team of bridge engineers and social scientists explains. The infrastructure bill in Congress would offer some help.
Permafrost is thawing across the Arctic, releasing microbes and organic materials that have been trapped in the frozen ground for thousands of years. NOAA via Wikimedia Commons

Thawing permafrost is full of ice-forming particles that could get into atmosphere

New research shows that permafrost contains huge amounts of particles that make it easier for cloud moisture to freeze. Thawing permafrost is releasing these ice-nucleating particles.

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