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“Unstoppable” Destabilization of West Antarctic Ice Sheet: Threshold May Have Been Crossed

By Brenda Ekwurzel, Senior Climate Scientist, Union of Concerned Scientists

Losing all the ice shelves of Antarctica would be like losing each flying buttress that supported a gothic building. Collapse is the inevitable result. The question is how fast is the collapse in the case of an ice sheet that would, as Richard Alley told Congress in February 2007, slowly spread outwards and flatten like pancake batter that was just plopped on a griddle.

Nearly a decade later, the latest science indicates a critical threshold may have already been crossed.

Here’s Mud in Your Ice! A Toast to Greenland’s Buried Treasure

They say dead men tell no tales. Dead bugs however can speak volumes. Discover the surprising secrets being revealed by a closer look at Arctic mud.

Diving Deep Below Arctic Ice to Bring Back Our Ocean’s Skeletons: #bestjobever

Polar expeditions to explore the ocean are not for the faint of heart. Above the water’s surface, you better be on alert for polar bears. Below, you better be game for diving 60 feet under sea ice into freezing temperatures. Watch National Geographic grantee Branwen Williams lead a team to the Canadian Arctic to do both in an effort to better understand how our oceans and the climate are changing over time.

Watch: Inside the World’s Longest Sea Caves

Geologist and National Geographic grantee Nicolas Barth was studying active faults on New Zealand’s South Island when he decided to climb down some cliffs and go for a swim. That’s when he discovered the longest sea cave in the world.

Hurricanes Are Making History This Year

Did you know that the 2015 tropical cyclone season in the Northern Hemisphere is already the most active on record? It’s a fact. Check out the graph below published by The Weather Channel and created by Colorado State University tropical scientist Dr. Phil Klotzbach and National Hurricane Center specialist Eric Blake. The take away: we are breaking…