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 the ...

In fact, later studies support the key conclusion: the world is warmer now than it has been for at least 1000 years The “hockey stick” graph was the result of the first comprehensive attempt to ...

Climate scientist Michael Mann is possibly best known for the iconic "hockey stick" graph published in 1998 that showed the steep rise in planetary temperatures. He was also one of the targets of a ...

PHILADELPHIA—Michael Mann is feeling pretty good about science. The climate scientist, author of the “hockey-stick graph” paper that infamously depicted a shocking rise in postindustrial average ...

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 ...

The “hockey stick” graph has been both a linchpin and target in the climate change debate. As a plot of average Northern Hemisphere temperature from two millennia ago to the present, it stays ...

We deliver climate news to your inbox like nobody else. Every day or once a week, our original stories and digest of the web's top headlines deliver the full story, for free. ICN provides ...