A graph meant to downplay climate change and shared by Jordan Peterson incorrectly uses data that is unrelated to global warming.

A video viewed thousands of times online disputes the reliability of an authoritative graph showing cooling global temperatures over 1,000 years and rapid warming in the 20th century. A speaker in ...

On 23 April 1998, US climate scientist Michael Mann and two colleagues published a paper in Nature. Central to it was a graph that would become known as the “ hockey stick ”.

The claim: 'Climate history' graph shows recent temperatures at 'lower end of the historical range' A Jan. 14 Twitter post (direct link, archive link) features a graph labeled "Climate History ...