John Shanahan, Civil Engineer, Editor of allaboutenergy.net: Colorado state and city governments are mandating conversion from fossil fuels to wind and solar based on arguments of catastrophic man-made global warming from carbon dioxide from fossil fuels. There is no man-made catastrophic global warming or sea-level rise. It is mostly, if not all natural. The turning away from fossil fuels will be a man-made disaster of the magnitude never seen before.
