The report moved quickly through climate science circles. Mann and a colleague soon lengthened the shaft of the hockey stick back to the year 1000 AD--and then, in 2001, the UN's Intergovernmental ...

A: The hockey stick graph became an icon in the climate change debate in substantial part when featured in the 2001 United Nations [Intergovernmental Panel on Climate Change] report.

Largely, they criticized the hockey stick's stark depiction, based for the most part on tree-ring data, of rising temperatures driven by global warming. The graph became famous after it appeared ...

Michael E. Mann, a scientist gifted at game theory and statistical analysis, worked with colleagues to figure out the trick of combining climate temperature data covering a thousand years into a ...

Since publishing the Hockey Stick climate graph in 1998, climatologist Michael Mann has had his email hacked and picked apart for the purpose of incriminating and discrediting his studies; his ...

Behind the Hockey Stick Seven years ago Michael Mann introduced a graph that became an iconic symbol of humanity's contribution to global warming. He has been defending his science ever since ...

The most controversial chart in history, explained Climate deniers threw all their might at disproving the famous "hockey stick" climate change graph. Here's why they failed.

The infamous “hockey stick” graph, which shows the northern hemisphere beginning to rapidly warm around the industrial age, has been backed up by new research. Michael Mann, who helped develop ...

In a new book, 'hockey stick' graph author and climate scientist Michael Mann tells his side of the story of the debate over human-caused climate change.

Climatologist Michael Mann is suing two bloggers, part of a mounting campaign to defend scientists against attacks from right-wing critics.

The hockey stick came to life in 1998 thanks to the work of Michael Mann, now at Pennsylvania State University, and his colleagues (and many other climate scientists who subsequently refined the ...

Michael Mann, the climatologist behind the influential—and infamous—‘hockey-stick graph,’ prevailed in a defamation case and says science is on a roll.