Arctic sea ice had its weakest winter buildup since record-keeping began 47 years ago. Scientists say it's a symptom of ...

The amount of springtime sea ice in the Arctic ... long-term loss of Arctic sea ice in all seasons.” Sea ice is frozen ocean water that has an annual cycle of melting during the summer and ...

The video shows how far sea levels have risen in the past three decades, from 1993 to 2022.Melting Arctic sea ice — mostly in the summer — is making the polar bear population smaller ...