Isotope patterns in ancient volcanic sulfur tell which global cooling episodes were caused by volcanic eruptions

Volcanoes are well known for cooling the climate. But just how much and when has been a bone of contention among historians, glaciologists and archeologists. Now a team of atmosphere chemists has come up with a way to say for sure which historic episodes of global cooling were caused by volcanic eruptions.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/1...