Major cuts in greenhouse gas emissions, of 40 to 70 percent by 2050 compared to 2010 levels, would be needed to limit global warming to 2 degrees Celsius, according to a draft UN report obtained by Reuters.
The Intergovernmental Panel on Climate Change (IPCC) draft, which sums up the three IPCC reports published over the past year, is intended to serve as a guide for the Paris climate talks in 2015, at which about 200 governments are slated to reach a deal to combat climate change.
“Deep cuts in greenhouse gas emissions to limit warming to 2 degrees C … remain possible, yet will entail substantial technological, economic, institutional, and behavioral challenges,” the IPCC draft says. It will be published Nov. 2 after editing.
A Massachusetts Institute of Technology report published earlier this week said next year’s UN talks in Paris are unlikely to result in the goal of slowing climate change and keeping global temperatures below 2 degrees Celcius.