U.N.: Phase Out Fossil Fuels By 2100 Or Face ‘Irreversible’ Climate Impact

Greenhouse gas emissions may have to cease by the end of the century to keep global temperatures from reaching levels many scientists consider dangerous, the United Nations’ latest climate assessment suggests. “Science has spoken,” U.N. Secretary General Ban Ki-moon said in Copenhagen at Sunday’s launch of the fourth and final report by the Intergovernmental Panel on Climate Change (IPCC), CBS News reports. “There is no ambiguity in their message. Leaders must act. Time is not on our side.” The IPCC assessment, which incorporated the findings of three other reports over the past 13 months, reaffirms with 95% certainty that global climate change is both real and a mostly man-made problem — a conclusion it shared in an earlier report. The entire project, which reviewed approximately 30,000 studies about climate, also suggests that if greenhouse gas emissions continue without intervention, there could be “irreversible” impacts, such as rising sea levels, more frequent heat waves and even a change in the human population’s male-female ratio. To halt climate change, countries around the world will have to wean themselves off fossil fuels, which emit greenhouse gases when burned, in favor of more sustainable and environmentally friendly energy sources, the IPCC report concluded. Last month, leaders of 28 European nations agreed to cut greenhouse gas emissions to at least 40 percent of 1990 levels by the year 2030. “W...
Source: TIME: Top Science and Health Stories - Category: Science Authors: Tags: Uncategorized Ban Ki-Moon climate change global warming John Kerry United Nations Source Type: news