Global cooling theories put scientists on guard
A new study suggesting a possible lull in manmade global warming has raised fears of a reduced urgency to battle climate change. The UN Intergovernmental Panel on Climate Change (IPCC), a group of hundreds of scientists, last year said global warming was "unequivocal" and that manmade greenhouse gas emissions were "very likely" part of the problem. And while the study published in the journal Nature last week did not dispute manmade global warming, it did predict a cooling from recent average temperatures through 2015, as a result of a natural and temporary shift in ocean currents.