Close to 80 percent of the world‘s energy supply could be met by renewables by mid-century if backed by the right enabling public policies, according to a new report from the United Nations Intergovernmental Panel on Climate Change released on May 9. The report noted that it is the absence of political will, not renewable resources, that can hinder progress: "it is not the availability of the resource, but the public policies that will either expand or constrain renewable energy development over the coming decades," according to Ramon Pichs, Co-Chair of the Working Group III. The 1,000+-page study looked at direct wind energy, solar energy;bioenergy, geothermal, hydropower and ocean energy and ran more than 164 different scenarios. It ruled out nuclear energy as cheaper way of cutting greenhouse gases stating that "renewables will contribute more to a low carbon energy supply by 2050 than nuclear power or fossil fuels using carbon capture and storage. Read the press release and the full report.