Scientists believe the ozone hole is threatening the Antarctic ocean's ability to absorb atmospheric carbon dioxide (RT @Varvera: Ozone hole affecting Antarctic's carbon absorption rates http://t.co/cRxGHeaa...
These have grown stronger and moved poleward over the past few decades as the ozone layer has thinned. The new study finds evidence that those shifting winds are speeding circulation patterns in polar waters, with the currents closer to the land pushing more deep water up to the ocean surface.
The scientists’ worry is that the increasing upwelling of that water, hundreds of years old and naturally rich in carbon dioxide, is reducing the amount of manmade carbon absorbed by sub-polar waters.
“This may sound entirely academic, but believe me, it’s not,” said Waugh. “This matters because the southern oceans play an important role in the uptake of heat and carbon dioxide, so any changes in southern ocean circulation have the potential to change the global climate.”