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Tag Archives: Arctic

Arctic greening thaws permafrost, boosts runoff

A new collaborative study has investigated Arctic shrub-snow interactions to obtain a better understanding of the far north’s tundra and vast permafrost system. Incorporating extensive in situ observations, Los Alamos National Laboratory scientists tested their theories with a novel 3D computer model and confirmed that shrubs can lead to significant ...

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More ships and more clouds mean cooling in the arctic

With sea ice in the Arctic melting at an alarming rate, opportunities for trans-Arctic shipping are opening up, and by mid-century ships will be able to sail right over the North Pole — something not previously possible for humankind. UConn geographer Scott Stephenson and colleagues say the growth of trans-Arctic ...

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Warming alters predator-prey interactions in the Arctic

Wolf spiders are so abundant that they outweigh real wolves in the Alaskan Arctic by several orders of magnitude. Their sheer numbers make them one of the important predators on the tundra. They may also be important in buffering some effects of climate change. Under warming conditions, arctic wolf spiders’ ...

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Marine mammals most at risk from increased Arctic ship traffic

In August 2016, the first large cruise ship traveled through the Northwest Passage, the northern waterway linking the Atlantic and Pacific oceans. The following year, the first ship without an icebreaker plied the Northern Sea Route, a path along Russia’s Arctic coast that was, until recently, impassable by unescorted commercial ...

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