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 ...

Tundra greenness: second-highest in the 25 ... We make our news on climate and the environment freely available to you and anyone who wants it. That’s not all. We also share our news for free ...

Tundra describes the Arctic’s tree-less plains ... Understanding how the environment is changing, through research like the Arctic Report Card, might similarly help humans adapt.

Arctic tundra, which has stored carbon for thousands of years, has now become a source of planet-warming pollution. As wildfires increase and hotter temperatures melt long-frozen ground ...

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 ...