Glaciers and ice caps in Arctic Canada are continuing to lose mass at a rate that has been increasing since 1987, reflecting a trend towards warmer summer air temperatures and longer melt seasons. (dotearth.blogs.nytimes.com)
One international team drilled a sediment core from beneath a Siberian lake and found that summer air temperatures there, in the mid-Pliocene, were as high as 15 ° C (about 59 ° Fahrenheit). (sciencenews.org)
Rising summer air temperatures are driving the glacier toward the ocean, leaving its surface heavily crevassed. (discovermagazine.com)