Earth’s northern polar cap is disappearing at unprecedented rates. To understand why, researchers are getting up close and personal with ice.
A HISTORY OF LOSS | On average, the Arctic ice cap has been shrinking since satellite observations began three decades ago. Overall ice extent at the end of the melt season, in September, has shrunk, bottoming out in an all-time low in 2007 (graph).
Log in
Subscribers, enter your e-mail address for full access to the Science News archives and digital editions.
