Explore phase change Clips and GIFs with Sound

US Climate Envoy Kerry Reiterates Coal-Free Pledge at COP27 Summit

Graupel Falls on Sioux Falls During Stormy Weather

Swimmers Brave Chicago Cold to Take Dip Among Pancake Ice

Winter Weather Delays School Openings in North Carolina

Lake Michigan Ice Pancakes Lap Against Pier

'What Are the Odds?': Stunning Lightning Bursts From Erupting Volcano in Guatemala

'Keep Up Buddy!': Emperor Penguin Slides Alongside Expeditioners in Antarctica

'Hypnotic': Chunks of Ice Float Along Ottawa River as Wintry Conditions Continue

Fidgety Polar Bear Cub Struggles to Get Comfortable Atop Sleepy Momma Bear

Study Finds More Time on Land Increases Starvation Risk for Polar Bears

Ice Waves Glide Over Lake Superior Shore in Ashland, Wisconsin

Record Polar Bear Dive Linked to Climate Change