USA Today: If every last crumb of fossil fuel on the planet was burned - all 5.5 trillion tons of the Earth's oil, coal and natural gas now underground - the world could heat up by as much as 18 degrees in the next three centuries, according to a scientific study out Monday that researchers say is a critical warning message on global warming.
This would be as warm as when dinosaurs roamed the Earth about 65 million years ago, one expert said.
"In that scenario, most of the planet would be unlivable for...