Video: John Christy’s stellar testimony – ‘The recent anomalous weather can’t be blamed on carbon dioxide.’
From The Senate EPW Jim Inhofe Press Office, well worth your time to watch.
Dr. John Christy, Alabama’s State Climatologist, Professor of Atmospheric Science and Director of the Earth System Science Center at the University of Alabama in Huntsville testified before the Senate Committee on Environment and Public Works hearing on global warming and stated:
“During the heat wave of late June and early July, high temperature extremes became newsworthy. Claims that there were thousands of records broken each day and that “this is what global warming looks like” got a lot of attention.
However, these headlines were not based on climate science. As shown in Figure 1.3 of my testimony it is scientifically more accurate to say that this is what Mother Nature looks like, since events even worse than these have happened in the past before greenhouse gases were increasing like they are today.
Now, it gives some people great comfort to offer a quick and easy answer when the weather strays from the average rather than to struggle with the real truth, which is, we don’t know enough about the climate to even predict events like this.
A climatologist looking at this heat wave would not be alarmed because the number of daily high temperature records set in the most recent decade was only about half the number set in the 1930s as shown in my written testimony. I suppose most people have forgotten that Oklahoma set a new record low temperature just last year of 31 below. And in the past two years, towns from Alaska to my home state of California established records for snowfall. The recent anomalous weather can’t be blamed on carbon dioxide
Australian Climate Commission called to task
The Australian Climate Commission sounded alarm bells about sea level rise in its Critical Decade report which shrilled:
Sea level rise is occurring at close to the worst case scenario, with the biggest rises happening on the southern coast. Rises on the northern coast have been around or just below the global average. The report concludes that a rise of between half a metre and one metre from 1990 levels is likely to happen by 2100, but more is possible.
The reality is quite different with studies reaching the opposite conclusion having just been published. Australian scientist Alberto A. Boretti reports:
The average rate of SLR over the almost 20-year period of satellite radar altimeter observations is 3.1640 mm/year, which if held steady over a century would yield a mean global SLR of 31.64 cm, which is just a little above the low-end projection of the IPCC for the year 2100. However, he also finds that the rate of SLR is reducing over the measurement period at a rate of -0.11637 mm/year2, and that this deceleration is also “reducing” at a rate of -0.078792 mm/year3.
What it means
Boretti writes that the huge deceleration of SLR over the last 10 years “is clearly the opposite of what is being predicted by the models,” and that “the SLR’s reduction is even more pronounced during the last 5 years.” To illustrate the importance of his findings, he notes that “in order for the prediction of a 100-cm increase in sea level by 2100 to be correct, the SLR must be almost 11 mm/year every year for the next 89 years,” but he notes that “since the SLR is dropping, the predictions become increasingly unlikely,” especially in view of the facts that (1) “not once in the past 20 years has the SLR of 11 mm/year ever been achieved,” and that (2) “the average SLR of 3.1640 mm/year is only 20% of the SLR needed for the prediction of a one meter rise to be correct.” Read more here and here
Meanwhile Greenland’s ice seems less vulnerable than feared to a runaway melt that would drive up world sea levels
An examination of old photos taken from planes revealed a sharp thinning of glaciers in north-west Greenland from 1985 to 1993, the experts in Denmark, Britain and the Netherlands wrote. Another pulse of ice loss in the area lasted from 2005 to 2010. The discovery of fluctuations casts doubt on projections that Greenland could be headed for an unstoppable meltdown, triggered by manmade global warming. Greenland contains enough ice to raise sea levels by 7 metres (23 ft) if it all thawed. “It starts and then it stops,” Kjaer told Reuters of the ice losses. “This is a break from thinking that it is something that starts, accelerates and will consume Greenland all at once.” However, Kjaer noted that the ice sheet did not get bigger in the pause between the pulses of ice loss. He said satellite data of Greenland’s ice only dated back to about 2000 and the use of aerial photos had extended the records of the remote Arctic region back another 15 years. The cause of the surge in ice loss in the 1980s was unclear but might have been linked to a shift in ocean currents. The underlying cause of a change in currents was unknown. “It is too early to proclaim the ‘ice sheet’s future doom’” caused by climate change, lead author Kurt Kjaer of the University of Copenhagen wrote in a statement of the findings in Friday’s edition of the journal Science.
Read more here
What we really need is more strategies like Meatless Mondays to save the planet now…