It’s ‘attack of the slime’ as jellyfish jeopardize the Earth’s oceans

It has been a controversial idea from the start: Did man-made global warming actually start 10,000 years ago?

William Ruddiman of the University of Virginia first proposed the idea in 2003. Last week, Stephen Vavrus, a climatologist at the University of Wisconsin-Madison’s Center for Climatic Research, presented supporting data, gathered with Prof. Ruddiman, to the American Geophysical Union.