In "Ends of the Earth," Neil Shubin travels north and south to explore the frontiers of polar science and history.

The Arctic reaches its maximum sea ice in March each year and then starts a six-month melt season. The National Snow and Ice ...

Since satellites began tracking it, Arctic sea ice's winter peak has shrunk by an area about the size of Pakistan.View on ...

recent report by Glacier Monitoring Switzerland ... 2022.Melting Arctic sea ice — mostly in the summer — is making the polar bear population smaller, weaker and hungrier because they rely ...