No Hockey Sticks: Studies Reveal Long-Term Lack of Warming

A new temperature reconstruction, using proxy temperature measurements from locations in central Asia, has revealed that there has been no warming in the past 432 years. by Vijay Jayaraj The Global Warming “Hiatus” or Pause The word “hiatus” became popular in recent years after the discovery of a pause or hiatus in global warming. There…

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Marcott – 3 spikes and you are out

Guest post by Nancy Green Tamino claims he has added 3 spikes to the Marcott et al proxy data and the Marcott et al process detects them. Source: http://tamino.files.wordpress.com/2013/04/many_vs_unpert.jpg This, he then proposes, is proof that there are no 20th century spikes in the Holocene.  This claim appears to run counter to a prediction I…

The Neo Paleo Twitter war of Mann -vs- D'Arrigo

It seems that Columbia’s Rosanne D’Arrigo thinks Mann’s tree ring study isn’t representative proxies for volcanic eruptions, nor good for dendrochronology, though Mike Mann seems to think so. This Twitter interchange via Alexandra Witze from the AGU Chapman Conference on Volcanism and the Atmosphere in Selfoss, Iceland 10–15 June 2012 tells the story: And Witze…