http://www.bbc.com/news/science-environment-34324439by Jonathan Webb
September 28, 2015
Oceanographers have gathered fresh evidence that turbulence in the Arctic Ocean, driven by the wind, is stirring up heat from the depths.
As dwindling ice exposes more water to the wind, this turbulence could close a vicious circle, accelerating the melt.
The research team has measured heat rising from below that matches what is arriving from the autumn sun.
They spoke to the BBC by satellite phone as their month-long voyage headed back into port.
Although their findings are preliminary, the "ArcticMix" team has been taken aback by what they've seen in the raw data.
"The strength of heat coming up from below the surface has been as strong as the heat coming down from the Sun," said the mission's chief scientist, Jennifer MacKinnon, of the Scripps Institution of Oceanography at the University of California San Diego.
(excerpt)
