Science Matters – Energy road map charts challenging course to oil-free future By David Suzuki Thirty-three years ago, NASA scientist James Hansen told a U.S. congressional committee the agency was 99 per cent certain a global warming trend was not natural, but caused by a buildup of greenhouse gases in the atmosphere, mainly from burning fossil fuels. … Continue reading Science Matters By David Suzuki – Energy road map charts challenging course to oil-free future