[july4thfreedomfoundation]

If so-called “Greenhouse Gases” cause so-called global warming, then what caused the Medieval warming period in the 1400’s, when the Earth warmed up by nine degrees and most of the North Pole (temporarily) melted?

[MtnClimber]

What caused the last ice age to end about 12,000 years ago?

[JBW1949]

SUV’s and cow farts caused all our problems....since the beginning of time....

[publius911]

If so-called “Greenhouse Gases” cause so-called global warming, then what caused the Medieval warming period in the 1400’s, when the Earth warmed up by nine degrees and most of the North Pole (temporarily) melted?

The answer to that can best be judged by the attempt by East Anglia, NASA and others who have been proven to have manipulated global warming data and tried to get real scientists to "eliminate" the "Medieval Warming Period" via plain and simple fraud.