From Plant Press Vol. 17 no. 1, January 2014.
An ancient new player has entered the debate over global warming and it is pink.
Labrador fishermen call them “red rocks” because underwater they resemble odd-shaped pastry topped with thick pink frosting. The color is the living algae Clathromorphum compactum and the hard rocklike material on which it sits are layers of calcified crusts the algae deposit year after year. They grow in shallow water (49 to 55 feet deep) and are widely distributed in the Arctic and sub-Arctic Oceans.
Now, scientists from the University of Toronto, the Smithsonian Institution and other research organizations have discovered how to use these crusty layers to track changes in Arctic sea ice over centuries, says Jochen Halfar, an associate professor in the University of Toronto’s Department of Chemical and Physical Sciences. Halfar is co-author of a paper printed in Proceedings of the National Academy of Sciences reporting that this newly tapped ‘archive’ shows a dramatic decrease in ice cover during the last 150 years.
Read more and watch the video "Treasure of the Subarctic" AFTER THE BREAK