Fact Check

(Fox News) - The man behind the Web site climateaudit.org has forced NASA to admit it was wrong when it said that 1998 was the hottest year on record. Steve McIntyre had to reverse engineer NASA's figures — because the agency refused to give him the formula it used to make the claim.

And McIntyre found out NASA had made a serious mistake. NASA eventually agreed, and now says 1934 was the hottest year — followed by 1998 — and 1921. In fact — five of the hottest 10 years on record occurred before World War II.