Foreboding environmental milestones abounded again ... evaluation was the effects of warmer weather and wildfires on the tundra, a far-northern biome that's typically known for extreme cold ...

The Arctic tundra now emits more carbon dioxide and other greenhouse gases than it absorbs. Rising temperatures due to climate change have shifted the ecosystem’s effect on the planet – it has ...

But the Arctic has warmed up at a faster rate than the planet as a whole during that period and its tundra is now releasing more carbon dioxide than it stores, according to scientists’ annual ...

“Particularly the large migratory herds, including the Western Arctic herd, have shown significant drops in population ...