United Nations Secretary-General Ban Ki-moon, right, addresses the media at the launch of the Synthesis Report of the Fifth Assessment Report of the Intergovernmental Panel on Climate Change on Nov. 2, 2014, in Copenhagen, Denmark. UN Photo/Amanda Voisard WASHINGTON, Nov. 3 (UPI) — The “silver lining” to a U.N. report on climate change is that deploying more renewable energy is affordable, the executive director of the Sierra Club said. A weekend report from the Intergovernmental Panel on Climate Change found emissions of carbon dioxide, a potent greenhouse gas, from the combustion of fossil fuels accounted for 78 percent of the total emissions increase from 1970 to 2010. Michael Brune, executive director of the Sierra Club, says the IPCC is clear that the global addiction to “dirty fossil fuels” is having global consequences. “The silver lining to the report is that it recognizes clean energy climate solutions are affordable and […]