Hockey stick chart climate
Why the hockey stick graph will always be climate science's icon. Today is the 20th anniversary of one of the most iconic images in science. 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 pioneering 'hockey stick' graph collected proxy temperature data from tree rings, lake sediments and ice cores It is a persuasive image. The "hockey stick" graph shows the average global Roughly 20 years ago, climate scientist Michael Mann published his famous “hockey stick” graph that he says “galvanized climate action” by showing unprecedented global warming. Mann used the 20-year anniversary of the graph to opine on the “industry-funded” attacks “to discredit the iconic symbol of the human impact on our climate,” which Mann claimed had withstood criticism.