26 enero 2015
For the first time, researchers have successfully decoded climate data from old permafrost ground ice and reconstructed the development of winter temperatures in Russia’s Lena River Delta. Their conclusions: over the past 7,000 years, winter temperatures in the Siberian permafrost regions have gradually risen.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/lzOWIgL5Hv4/150126124735.htm
