By Alister Doyle OSLO, Aug 7 (Reuters) – Deep cuts in greenhouse gas emissions of 40 to 70 percent by mid-century will be needed to avert the worst of global warming that is already harming all continents, a draft U.N. report showed. The 26-page draft, obtained by Reuters on Thursday, sums up three U.N. scientific reports published over the past year as a guide for almost 200 governments which are due to agree a deal to combat climate change at a summit in Paris in late 2015. It says existing national pledges to restrict greenhouse gas emissions are insufficient to limit warming to 2 degrees Celsius (3.6 Fahrenheit) above pre-industrial times, a U.N. ceiling set in 2010 to limit heatwaves, floods, storms and rising seas. “Deep cuts in greenhouse gas emissions to limit warming to 2 degrees C … remain possible, yet will entail substantial technological, economic, institutional, and behavioural challenges,” according to the draft due for publication in Copenhagen on Nov. 2 after rounds of editing.
Source: https://in.news.yahoo.com/deep-emissions-cuts-needed-2050-limit-warming-u-155655737–business.html