permafrost melt

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Siberia permafrost meltdown
Credit: Steve Jurvetson/Flickr

Siberia’s ice is melting, revealing its past and endangering its future

Sheets of the softening land have emerged for the first time in hundreds of thousands of years, revealing skeletons, disease and awakening life.
Chum salmon Arctic spawning

Chum salmon are spawning in the Arctic. It’s an ominous sign

The fish may be a harbinger of dramatic warming in the north—and rapidly transforming ecosystems.
earthworms migrate to the Far North

Some squirmy stowaways got to the Arctic. And they like it there

The unexpected presence of earthworms in the Far North could cause rapid changes in some of the planet’s most fragile ecosystems.
Melting Arctic glaciers releasing methane

Melting Arctic glaciers are triggering the release of methane

Scientists found that rapidly retreating Arctic glaciers are triggering the release of methane, a potent greenhouse gas that causes global temperatures to rise, into the atmosphere.
alaska town sunrise snow

As Newtok, Alaska, crumbles, residents are left in a dangerous limbo

The town is supposed to move, but federal funding and complex logistics mean most residents are stuck.
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In a first, US pays tribes to move away from climate threats

In a first, US pays tribes to move away from climate threats

The Interior Department has selected the winners of a new competition to relocate communities vulnerable to climate change. It could become a model for the rest of the country.
extreme arctic rain linked to less sea-ice

Extreme rain over Svalbard is caused by less sea-ice

The occurrence of extreme precipitation over Svalbard seen over the last four decades is linked with declining sea-ice in the Greenland Sea, a new study concludes.