The Forum > Article Comments > Stay rational on climate change > Comments
Stay rational on climate change : Comments
By Jeremy Gilling and John Muscat, published 7/11/2008Many assume that a 'climate sceptic' rejects man-made global warming. But that isn’t how the term is used by activists and the media.
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The enhanced green-house effect is difficult for some people to understand.
At the risk of over simplifying; if you put energy into a system, it heats up. If there is water around, it evaporates, ultimately condenses (within 10 days in our atmosphere) and as you say, precipitates out as rain or snow. In this sense, the temperature determines the amount of moisture in the air.
What Dessler and his team of researchers have shown, is that there are other ‘drivers’ (like atmospheric CO2 concentration, resident time >>> 10 days) that impact on the temperature, is independent of relative humidity, and that clouds (for example) act as a positive (usually) feedback.
AGW masks the natural variability that you allude to (it is also important to understand that weather is not climate).
My research interests lie in ocean/atmosphere/land coupled systems, particularly in relation to things ‘water’. In forty years, I have never seen so much misinformation and distortion of the science as I have seen in the last few years. It never ceases to amaze me why ‘arm-chair’ scientists (from accountants to ‘hockey-moms’) keep telling experts in their field that they have it all wrong, that they don’t understand the science, or they are involved in some worldwide socialist conspiracy – astonishing.
Bob Carter is an expert in “rock layering”; he gets celebrity on the public speaking circuit and often represents right-wing think tanks (Lavoisier Group, IPA, Heartland Institute, etc) giving presentations in the populist media (like here on OLO) and the blogosphere. He does not publish articles on ‘climate change’ in reputable science journals for one very simple reason – he cannot back up his rhetoric with validated research. He blows ‘smoke screens’ – why?
In the scientific sense, he is not a climate change ‘sceptic’. He is a climate change ‘denier’.
A true climate change ‘sceptic’ (in the scientific sense) is someone like Roy Spencer – I truly hope he can put a dint in the theory of AGW. But he hasn’t ... yet. He (like Dessler) is also looking at clouds, water and (negative) feedbacks.