Planet likely to warm by 4C by 2100, scientists warn

Professor Steven Sherwood, author of a recent Nature article warns that unless emissions of greenhouse gases were reduced, the planet would heat up by a minimum of 4C by 2100, twice the level regarded as dangerous by climate scientists, reports The Guardian.

"4C would likely be catastrophic rather than simply dangerous," Sherwood said. "For example, it would make life difficult, if not impossible, in much of the tropics, and would guarantee the eventual melting of the Greenland ice sheet and some of the Antarctic ice sheet" - causing sea levels to rise by many metres as a result.