Topic: Mark Serreze
Antarctic ice expansion doesn't disprove warming, scientists say. Warming has long been expected to hit Arctic ice first.
As Arctic sea ice melted to the lowest level ever recorded, researchers said they were unprepared for the speed of this facet of climate change. As Arctic ice melts, scientists worry it will add heat and moisture to the globe's climate system.
By Arctic standards, the region is already buzzing with military activity, and experts believe that will increase significantly in the years ahead.
An unusually warm January has limited the return of Arctic sea ice, whose extent set a record low for the month. The ice's ability to reflect sunlight back into space has a significant influence on climate worldwide.
02/05/2011 04:04 pm
The seasonal cooling effect of light-reflecting snow and ice in the Northern Hemisphere may be weakening at twice the rate predicted by climate models, a new study shows, accelerating the impact of global warming.
01/18/2011 08:47 pm
The Arctic ice cap will disappear? A new study says the Arctic Ocean could be ice-free during the summer months in less than 20 years.
10/15/2009 01:00 am
For the first time in recorded human history, the Arctic is completely surrounded by open water, new satellite images reveal.
09/03/2008 01:00 am