Greenhouse Gas Deadline Down to the Wire: U.N.
The latest report by the U.N. group responsible for assessing climate change says the world is running out of time to keep global warming from exceeding the 2 degrees Celsius limit (3.6 degrees Fahrenheit) agreed to in 2010.
If greenhouse gas emissions are not curbed sharply, and soon, climate experts say that by 2100, temperatures will rise by between 3.7 and 4.8 degrees Celsius (6.6 and 8.6 degrees Fahrenheit) over pre-industrial times.
China, the United States and Europe are the top emitters.
The Intergovernmental Panel on Climate Change (IPCC) cautions in the new report that there must be a “massive shift” to renewable energy to avert more severe heat waves, droughts and rising sea levels.
Last year, the IPCC said there is a 95 percent probability that climate change since 1950 is mainly due to human activities rather than natural variations.
Nations have pledged to work out a deal to limit global warming by the end of 2015. The latest IPCC report was prepared to help almost 200 governments do that.
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