Another greenhouse input
Friday, May 30th, 2008 byNews stories about new, unexpected inputs of greenhouse gases into the atmosphere as a result of global warming that will lead to more global warming are sadly coming more frequently. In this case, science has had another ‘golly gee’ moment over a study that indicates that there are massive methane deposits trapped beneath the (rapidly melting) polar ice sheets that could be rapidly released into the atmosphere and trigger catastrophic climate change. It seems to have done that earlier in Earth’s history:
An abrupt release of methane, a powerful greenhouse gas, from ice sheets that extended to Earth’s low latitudes some 635 million years ago caused a dramatic shift in climate, scientists funded by the National Science Foundation (NSF) report in this week’s issue of the journal Nature.
