Australians' concern over global warming rebounds, page-78

Glad to oblige

The famous Hockey stick graph fraud.

"The climate crisis parade’s leading drum major may have led his band down a dangerous legal road. Claiming exoneration by previous scientific conduct investigations, Dr. Michael Mann, of Climate Gate fame, subsequently filed a libel law suit to defend his professional reputation, and he now threatens to launch another. Many believe he got a free pass from perfunctory earlier hearings, and they welcome these new opportunities to have him face the music of serious inquiry."

"The hockey stick graph at the centre of this dispute was based heavily upon data taken from trees on the Yamal Peninsula in Siberia. Created by Mann and his colleagues, it supposedly proved that air temperatures had been stable for 900 years until the 20th century, and then suddenly rocketed off the charts (attributing this to human-caused greenhouse gas emissions). That image was featured to support urgency of a cap on carbon dioxide through the Kyoto Protocol which was being pushed at the time by Al Gore and the United Nations. It prominently and repeatedly appeared in Intergovernmental Panel on Climate Change (IPCC) reports."
But there were some problems with that graph and the research behind it. Some very big problems. One was that the Medieval Warm Period which occurred between about AD 800 and 1100 along with the Little Ice Age (not a true Ice Age) which occurred between about AD 1350-1850 somehow turned up missing. And as for those Yamal tree samples, they came from only 12 specimens of 252 in the data set… while a larger data set of 34 trees from the same vicinity that weren’t used showed no dramatic recent warming, and warmer temperatures in the Middle Ages.

Scientific critics raise another looming question. Mann’s 1,000-year-long graph was cobbled together using various proxy data derived from ice cores, tree rings and written records of growing season dates up until 1961, where it then applied surface ground station temperature data. Why change in 1961? Well, maybe it’s because that’s when other tree ring proxy data calculations by Keith Briffa at the East Anglia University Climate Research Unit (CRU) began going the other way in a steady temperature decline. After presenting these unwelcome results to Mann and others, he was put under pressure to recalculate them. He did, and the decline became even greater.

As recorded in Climate Gate e-mails, this presented what Mann referred to as a “conundrum” in that the late 20th century decline indicated by Briffa would be perceived by IPCC as “diluting the message”, was a “problem”, and posed a “potential distraction/detraction”. Mann went on to say that the warming sceptics would have a “field day” if Briffa’s declining temperature reconstruction was shown, and that he would “hate to be the one” to give them “fodder”.

In an e-mail sent to Mann and others, CRU’s director Philip Jones reported: “I’ve just completed Mike’s Nature [journal] trick…to hide the decline [in global temperatures].” “Mike’s” ( Mann’s) “trick” was to add in real temperatures to each series for the last 20 years from 1979 onwards and from 1961 for Briffa’s, show all of the proxy and surface measurement chartings in different colors on a single graph, and then simply cut off Briffa’s in a spaghetti clutter of lines at the 1961 date.

http://www.forbes.com/sites/larrybe...gate-star-michael-mann-courts-legal-disaster/

The list gets longer this will end up becoming the Y2K of this century..."