The melt season for Arctic sea ice is underway after the annual maximum extent was reached late last month. Sea ice extent reached its annual maximum on Feb. 25, 15 days earlier than the 1981-2010 average date and one of the earliest dates for that milestone in the four-decade satellite record.

Following another year of stark climate impacts in the Arctic, scientists warned Tuesday of a new scourge hitting the region: marine trash. With the region warming twice as fast as the rest of the world, sea ice that has long blanketed the Arctic Ocean is disappearing, opening new routes to shipping.

Never before at this time of year have so many vessels been rescued out of the ice, says Russia's nuclear icebreaker operator Rosatom. It has been an Arctic odyssey for the ships and crews that in November got stuck in sea-ice on the remote Northern Sea Route.

Majestic, increasingly hungry and at risk of disappearing, the polar bear is dependent on something melting away on our warming planet: sea ice.

With climate change fueling high temperatures across the Arctic, Greenland lost a massive amount of ice on Wednesday with enough melting to cover the U.S. state of Florida in 2 inches (5.1 centimeters) of water, scientists said. It was the third-biggest ice loss for Greenland in a single day since 1950.

The Bering Sea region, the Pacific gateway to the Arctic Ocean, is home to ecosystems on land and in the ocean that are both abundant and fragile. It’s also changing very quickly — and those changes offer a preview of the changes in store for other parts of the Arctic.

South winds and warm water are hitting sea ice on Arctic waters with a double whammy.

Arctic sea ice last month reached its greatest extent for the season, and it was the lowest in the satellite record. Now researchers say that ice is also younger and thinner than it once was.