Green snow is a sign of the climate change in Antarctica

As temperatures increase as a result of climate change, green snow created by blooming algae becomes common in the Antarctic Peninsula.

Green snow alga is microscopic when measured individually, but when the organisms grow simultaneously, they turn the snow bright green, and can even be spotted from space, Researchers from the University of Cambridge and the British Antarctic Survey used European Space Agency satellite data with measurements from Antarctica's Ryder Bay, Adelaide Island, the Fildes Peninsula and King George Island to map the grren snow areas. They identified 1,679 separate blooms of green algae on the snow surface, covering an area of 1.9 km2.


The green snow appears along the coast. Those areas are carbon sink, absorbing more carbon that the released. Researchers say the Antarctic Peninsula is the part of the region that has experienced the most rapid warming in the latter part of the last century.Scientists believe the overall mass of snow algae will increase. Excrement of bird populations will also have the role as a fertilizer to accelerate growth of algae. Green is not the only splash of colour in Antarctica. The researchers intend to expand their studies to include red and orange algal blooms that contribute to a multi-colored landscape.