February 15, 2015

Hockey stick graph on climate change

Michael Mann, Raymond S. Bradley and Malcolm K Hughes created the famous "hockey stick graph" in 1999 for a paper, "Northern hemisphere temperatures during the past millennium: Inferences, uncertainties, and limitations." In 2001, the Intergovernmental Panel on Climate Change published a version of the graph in its report, pushing the hockey stick depiction of temperature trends to the forefront of the climate change discussion.

So I present it again for your consideration. It says it all.