Massive volcanic eruptions could cause localised warming that might destabilise some of the world's biggest ice sheets, according to new research from Durham University.
By studying rocks at different elevations beside the East Antarctic Ice Sheet (EAIS), the team concluded that a period of rapid glacier thinning occurred in the recent geological past, and persisted for several centuries.
They go to paddle between glistening icebergs or ski on blinding white ice, but a rising number of polar tourists get to see something else, too: the monumental changes wrought by global warming.
NASA's Operation IceBridge, an airborne survey of polar ice, recently finalized two overlapping campaigns at both of Earth's poles. Down south, the mission observed a big drop in the height of two glaciers situated in the ...