Earth's Temperature at Highest Levels in 400 Years

thatguywhoiam writes "Congress asked, and the scientists have answered: 'The Earth is the hottest it has been in at least 400 years, probably even longer. The National Academy of Sciences, reaching that conclusion in a broad review of scientific work requested by Congress, reported Thursday that the 'recent warmth is unprecedented for at least the last 400 years and potentially the last several millennia.'"