the impact of humans on earth is unparalleled, with scientists arguing our actions have tipped the planet into a new era - the anthropocene - with fallout from nuclear bombs now written into the rocks beneath our feet, and species facing extinction at 1,000 times the usual rate.  yet global warming could turn out to be the most devastating consequence of human progress. if temperatures continue to increase, experts forecast catastrophic sea level rises, a surge in hurricanes and cyclones, the spread of lethal disease, drought, famine and deadly heatwaves.  but does the science back up these claims? is carbon dioxide primarily to blame or could there be other causes? what role do the sun, clouds and the oceans play?  and, can today’s climate models be trusted when scientists have misrepresented the data in the past?  here is what we know:  global temperature rise
climate change: fake news or global threat? these are the facts