Christopher Pearson | March 22, 2008
CATASTROPHIC predictions of global warming usually conjure with the notion of a tipping point, a point of no return.Last Monday - on ABC Radio National, of all places - there was a tipping point of a different kind in the debate on climate change. It was a remarkable interview involving the co-host of Counterpoint, Michael Duffy and Jennifer Marohasy, a biologist and senior fellow of Melbourne-based think tank the Institute of Public Affairs. Anyone in public life who takes a position on the greenhouse gas hypothesis will ignore it at their peril.
Duffy asked Marohasy: "Is the Earth stillwarming?"
She replied: "No, actually, there has been cooling, if you take 1998 as your point of reference. If you take 2002 as your point of reference, then temperatures have plateaued. This is certainly not what you'd expect if carbon dioxide is driving temperature because carbon dioxide levels have been increasing but temperatures have actually been coming down over the last 10 years."
Duffy: "Is this a matter of any controversy?"Marohasy: "Actually, no. ...
Read the rest at the Australian News: http://www.theaustralian.news.com.au/story/0,25197,23411799-7583,00.html.
I recently read the Popular Science editorial where the editor said "The threat of human-influenced is no longer in serious debate," (April 2008) and I wrote him an email refuting that statement. Of course he did not reply. Hey Mark Jannot! You edit a magazine called Popular Science. You know, science. Not politically correct non-science.
I once subscribed to Science Digest. One article told about a volcano in the Antarctic that has been erupting for hundreds of years. A letter to the editor pointed out, (this was when the ozone hole was big news) that chemicals from the volcano must be contributing to the formation of the hole more than man-made freon. The editor replied that of course there was no mechanism to move the chemicals from the lower to the upper atmosphere. I was outraged! If there was no mechanism to move chemicals from a volcano spewing them high into the air, what was the mechanism to move freon from ground level to the upper atmosphere? It was such a stupid, politically correct response from the Science Digest editor that I canceled my subscription. I told them I thought I had subscribed to a science magazine! Oh, my mistake!
Unfortunately scientists and science writers can be just as self-righteous and opinionated as anyone. This has always been the case, sad but true.
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