▲ Film source: European News Network
Glaciers in the Italian Alps have been mysteriously dyed pink recently, and scientists have found that it is all caused by some kind of seaweed.
Agence France-Presse, The Guardian and the European News Network reported that scientists are arguing about the source of algae that dyed the glaciers in Liplechne, Italy, but Biagio Di Mauro of the Italian National Research Council believes that the powdery snow observed in some blocks in Plelechene may be similar to that found in Greenland.
Dumareau had previously observed this algae in the glacier in Mortera, Switzerland. He said, "This kind of algae is not dangerous. Spring and summer are natural phenomena in mid-latitudes, but they can also be seen in the polar regions. 」
This "ice algae" appears in the so-called "dark zone" of Greenland, that is, the area where the ice is melting. Under normal circumstances, ice will reflect 80% of solar radiation back into the atmosphere, but because the appearance of algae darkens the color of ice, ice will absorb heat and melt faster.
Ice melts faster, giving algae the water and air they need, which will lead to more algae. On the Jiawei Pass at an altitude of 26 18 meters, the original white ice is a little more red.
"Anything that darkens snow will cause it to melt, because it accelerates the absorption of radiation," Di Marco said. 」
"We are trying to quantify the impact of phenomena other than human behavior on the overheating of the earth. 」