Torn's work on how global warming may release carbons in forest soils picked up by several outlets
Climate scientists have long been concerned about the possibility that warming temperatures will speed changes on the earth’s surface that will in turn accelerate global warming. The best illustration of such a feedback loop involves the melting of sea ice in the Arctic. The ice reflects solar radiation back into space rather than absorbing it. When it melts, it leaves open water that absorbs the heat rather than reflecting it. The more warm water there is, the more ice melts, and so on.
Now scientists have identified another feedback loop that may be accelerating the loss of carbon dioxide from the topsoil of forests in the United States, contributing to climate change. In a study published online on Monday, researchers at the University of California, Irvine, and the Lawrence Berkeley National Laboratory found that as temperatures rise, activity increases among the microbes that eat the topsoil and exhale carbon dioxide afterward.
