19 junio 2015
Over billions of years, the total carbon content of the outer part of the Earth — in its mantle lithosphere, crust, oceans, and atmospheres — has gradually increased, scientists say. The new analyses that represent an important advance in refining our understanding of Earth’s deep carbon cycle.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/oPq8boB0Czw/150619103524.htm
