Experts set threshold for climate-change calamity

The world's leading climate scientists have for the first time established a limit on the amount of greenhouse gases that can be released before the Earth reaches a tipping point and predicted that it will be surpassed within decades unless swift action is taken to curb the current pace of emissions.

The warning was issued Friday by a panel of U.N.-appointed climate change experts meeting in Stockholm.

The Intergovernmental Panel on Climate Change estimated that once a total of 1 trillion tons of carbon dioxide are emitted into atmosphere, the planet will exceed 3.6 degrees of warming, the internationally agreed-upon threshold to the worst effects of climate change.

Read full text at the LA Times.