All about global warming and issues of scientific concern: New NASA Data Blow Gaping Hole In Global Warming Alarmism

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Monday, February 17, 2014

No, global warming did NOT cause the storms, says one of the Met Office's most senior experts

Mat Collins, Exeter University Professor in climate systems, said storms driven by jet stream that has been 'stuck' further south than usual

He told The Mail on Sunday there is 'no evidence that global warming can cause the jet stream to get stuck in the way it has this winter'
Appears to contradict Met Office chief scientist Dame Julia Slingo

By DAVID ROSE

Mat Collins, prof at Exeter Uninversity

PUBLISHED: 17:07 EST, 15 February 2014 | UPDATED: 11:38 EST, 16 February 2014

One of the Met Office’s most senior experts yesterday made a dramatic intervention in the climate change debate by insisting there is no link between the storms that have battered Britain and global warming.

Mat Collins, a Professor in climate systems at Exeter University, said the storms have been driven by the jet stream – the high-speed current of air that girdles the globe – which has been ‘stuck’ further south than usual.

Professor Collins told The Mail on Sunday: ‘There is no evidence that global warming can cause the jet stream to get stuck in the way it has this winter. If this is due to climate change, it is outside our knowledge.’

His statement carries particular significance because he is an internationally acknowledged expert on climate computer models and forecasts, and his university post is jointly funded by the Met Office.

Dame, Julia Slingo

Prof Collins is also a senior adviser – a ‘co-ordinating lead author’ – for the United Nations Intergovernmental Panel on Climate Change (IPCC). His statement appears to contradict Met Office chief scientist Dame Julia Slingo.

Last weekend, she said ‘all the evidence suggests that climate change has a role to play’ in the storms.

Prof Collins made clear that he believes it is likely global warming could lead to higher rainfall totals, because a warmer atmosphere can hold more water. But he said this has nothing to do with the storm conveyor belt.

He said that when the IPCC was compiling its Fifth Assessment Report on climate change last year, it discussed whether warming might affect the jet stream. But, he went on, ‘there was very low confidence that climate change has any effect on the jet stream getting stuck’. In the end, the possibility was not even mentioned in the report.

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Prof Collins declined to comment on his difference of opinion with Dame Julia.

Five months ago, in a briefing on the IPCC report to Ministers, Dame Julia conceded the consequence of warming for rainfall ‘is not simulated well’ by climate models – though they are the basis for most of what she and other scientists say about the effects of climate change.

Last April, after the temperature fell to -11C in Aberdeenshire, the coldest April temperature for more than 100 years, Dame Julia said the cold winter and spring might also be due to global warming, because of ice melting in the Arctic.

Meanwhile, the Met Office has continued to issue questionable long-term forecasts. In mid-November, two weeks before the first of the storms, it predicted persistent high pressure for the winter, which was ‘likely to lead to drier-than-normal conditions across the country’.

It added that its models showed the probability of the winter being in the driest of five official categories was 25 per cent. The chances of it being in the wettest category was 15 per cent.

Infamously, in April 2009, the Met Office promised a ‘barbecue summer’ – which then turned out to be a washout. It forecast the winter of 2010 to 2011 would be mild: it was the coldest for 120 years.

In 2007, the Met Office said that globally, the decade 2004-2014 would see warming of 0.3C. In fact, the world has not got any warmer at all in this period.

Thursday, July 28, 2011

New NASA Data Blow Gaping Hole In Global Warming Alarmism

By James Taylor | Forbes – Wed, Jul 27, 2011

NASA satellite data from the years 2000 through 2011 show the Earth's atmosphere is allowing far more heat to be released into space than alarmist computer models have predicted, reports a new study in the peer-reviewed science journal Remote Sensing. The study indicates far less future global warming will occur than United Nations computer models have predicted, and supports prior studies indicating increases in atmospheric carbon dioxide trap far less heat than alarmists have claimed.

Study co-author Dr. Roy Spencer, a principal research scientist at the University of Alabama in Huntsville and U.S. Science Team Leader for the Advanced Microwave Scanning Radiometer flying on NASA's Aqua satellite, reports that real-world data from NASA's Terra satellite contradict multiple assumptions fed into alarmist computer models.

"The satellite observations suggest there is much more energy lost to space during and after warming than the climate models show," Spencer said in a July 26 University of Alabama press release. "There is a huge discrepancy between the data and the forecasts that is especially big over the oceans."

In addition to finding that far less heat is being trapped than alarmist computer models have predicted, the NASA satellite data show the atmosphere begins shedding heat into space long before United Nations computer models predicted.

The new findings are extremely important and should dramatically alter the global warming debate.

Scientists on all sides of the global warming debate are in general agreement about how much heat is being directly trapped by human emissions of carbon dioxide (the answer is "not much"). However, the single most important issue in the global warming debate is whether carbon dioxide emissions will indirectly trap far more heat by causing large increases in atmospheric humidity and cirrus clouds. Alarmist computer models assume human carbon dioxide emissions indirectly cause substantial increases in atmospheric humidity and cirrus clouds (each of which are very effective at trapping heat), but real-world data have long shown that carbon dioxide emissions are not causing as much atmospheric humidity and cirrus clouds as the alarmist computer models have predicted.

The new NASA Terra satellite data are consistent with long-term NOAA and NASA data indicating atmospheric humidity and cirrus clouds are not increasing in the manner predicted by alarmist computer models. The Terra satellite data also support data collected by NASA's ERBS satellite showing far more longwave radiation (and thus, heat) escaped into space between 1985 and 1999 than alarmist computer models had predicted. Together, the NASA ERBS and Terra satellite data show that for 25 years and counting, carbon dioxide emissions have directly and indirectly trapped far less heat than alarmist computer models have predicted.

In short, the central premise of alarmist global warming theory is that carbon dioxide emissions should be directly and indirectly trapping a certain amount of heat in the earth's atmosphere and preventing it from escaping into space. Real-world measurements, however, show far less heat is being trapped in the earth's atmosphere than the alarmist computer models predict, and far more heat is escaping into space than the alarmist computer models predict.

When objective NASA satellite data, reported in a peer-reviewed scientific journal, show a "huge discrepancy" between alarmist climate models and real-world facts, climate scientists, the media and our elected officials would be wise to take notice. Whether or not they do so will tell us a great deal about how honest the purveyors of global warming alarmism truly are.

James M. Taylor is senior fellow for environment policy at The Heartland Institute and managing editor of Environment & Climate News.