By Ian Wishart
The scientists behind a widely reported new climate change study suggesting we are currently in the warmest climate of the past four thousand years have had their work shredded in peer review, and been accused of skating close to scientific “misconduct”.
The paper, led by Oregon State University’s Shaun Marcott, claimed to have validated the discredited “hockey stick” graph and proven that modern temperatures were the highest in four millennia.
Their research was published in the prestigious journal Science and sparked worldwide media headlines. The New York Times trumpeted “Global temperatures highest in 4000 years”, while Associated Press went even further: “Heat spike unlike anything in 11,000 years”.
Now, the story is rapidly unraveling.
After being peer reviewed by skeptical scientists, Marcott et al were forced to retract their biggest claim, admitting the so-called modern heat spike was not supported in the actual data after all:
“The 20th century portion of our paleotemperature stack is not statistically robust, cannot be considered representative of global temperature changes,” they admitted in a news release over Easter. In other words, there is no evidence to support the grand claims that swept through world media last month.
As other reports have shown, modern warmth is nowhere near the usual highs between ice ages.
One of the harshest critics, the usually moderate scientist Roger Pielke Jr, was so incensed after conducting his own analysis he has accused Marcott et al of skating close to scientific misconduct, and he is calling for a retraction and correction of the paper published by Science.
Climate Depot’s Marc Morano is calling for retractions and apologies from the New York Times and Associated Press as well.