"The Arctic ... sea ice toward northern parts of the globe. It's like a self-reinforcing feedback loop that spells danger for one of the planet's most vulnerable regions. The ARCSIX plane flew ...

A new study measured water vapor in Greenland's air, collecting data crucial for improving climate models and forecasting Arctic changes.

Arctic sea ice had its weakest winter buildup since record-keeping began 47 years ago, a symptom of climate change that will have repercussions globally, scientists said Thursday. The Arctic ...