2-2 Global Warming: Permafrost Thawing and Methane Releasing
A report published by the US Geological Survey in 2008 stated: According to paleoclimate studies, there are four types of abrupt climate change. 1. Rapid change in glaciers, ice sheets, and hence sea level; 2. Widespread and sustained changes to the hydrologic cycle; 3. Abrupt change in the northward flow of warm, salty ...
