Add Yahoo as a preferred source to see more of our stories on Google. Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are ...

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, the region is ...

Wildfires and thawing permafrost are causing the region to release more carbon dioxide than its plants remove, probably for the first time in thousands of years. By Raymond Zhong For thousands of ...

In a sign of how swiftly and extensively climate change is reshaping the Arctic environment, a new study has found that the region’s mighty boreal forests — stands of mighty spruce, fir, and larch ...

Survival in the Arctic biome isn’t for the weak. This episode breaks down the essential evolutionary “skills” — blubber-based defense, thermal regulation, and hunting efficiency , that separate ...

Foreboding environmental milestones abounded again this year in the Arctic, where experts say dramatic climate shifts are fundamentally altering the ecosystem and how it operates. One recent turning ...