Climate change is real, caused by humans burning fossil fuels, and potentially a serious threat to society. (standard.net)
He strongly implies that this year's warmth is consistent with the theory that greenhouse gases from humans burning fossil fuels makes the earth warmer: it's our fault. (pjmedia.com)
As humans burn fossil fuels, adding carbon dioxide to the atmosphere, globally average temperature rises as a result. (nsidc.org)