A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, causing extreme cold in the East.

There's a confounding dilemma for many folks trying to make sense of winter weather in the context of climate change.

President Trump cited a major winter storm​ as evidence to suggest that global warming does not exist — a misleading claim that has been consistently debunked by climate experts.

Human-caused climate change worsened recent torrential rains and floods that devastated parts of southern Africa, killing more than 100 people and displacing hundreds of thousands, researchers said Thursday.

For years, public debate has treated climate change as a single number on a thermometer, rising in tiny fractions of a degree. That narrow focus misses how risk is already spreading through food systems,

We established a special Coastal Hazards Organizational Resilience Team, or COHORT, to help boost the ability of coastal communities and Tribes to thrive in the present, adapt to challenges and transform as necessary to meet future threats, and take advantage of opportunities related to climate change.

The frigid weather gripping much of America is not unprecedented, but it feels that way. The 21st century has been unusually warm, likely due to climate change.

Many US cities have been significantly damaged by climate change, and the damage is projected to worsen in