Monday, July 13, 2009

Plimer on Climate

This piece, from The Spectator, is an interview with Professor James Plimer, a global warming skeptic with serious credentials.
The hypothesis that human activity can create global warming is extraordinary because it is contrary to validated knowledge from solar physics, astronomy, history, archaeology and geology,' says Plimer...
So go on then, Prof. What makes you sure that you're right and all those scientists out there saying the opposite are wrong? 'I'm a geologist. We geologists have always recognised that climate changes over time. Where we differ from a lot of people pushing AGW is in our understanding of scale. They're only interested in the last 150 years. Our time frame is 4,567 million years. So what they're doing is the equivalent of trying to extrapolate the plot of Casablanca from one tiny bit of the love scene. And you can't. It doesn't work.'

What Heaven And Earth sets out to do is restore a sense of scientific perspective to a debate which has been hijacked by 'politicians, environmental activists and opportunists'. It points out, for example, that polar ice has been present on earth for less than 20 per cent of geological time; that extinctions of life are normal; that climate changes are cyclical and random; that the CO2 in the atmosphere — to which human activity contributes the tiniest fraction — is only 0.001 per cent of the total CO2 held in the oceans, surface rocks, air, soils and life; that CO2 is not a pollutant but a plant food; that the earth's warmer periods — such as when the Romans grew grapes and citrus trees as far north as Hadrian's Wall — were times of wealth and plenty.

All this is scientific fact — which is more than you can say for any of the computer models turning out doomsday scenarios about inexorably rising temperatures, sinking islands and collapsing ice shelves. Plimer doesn't trust them because they seem to have little if any basis in observed reality.

'I'm a natural scientist. I'm out there every day, buried up to my neck in sh**, collecting raw data. And that's why I'm so sceptical of these models, which have nothing to do with science or empiricism but are about torturing the data till it finally confesses. None of them predicted this current period we're in of global cooling. There is no problem with global warming. It stopped in 1998. The last two years of global cooling have erased nearly 30 years of temperature increase.'

Does he really believe his message will ever get through? Plimer smiles. 'If you'd asked any scientist or doctor 30 years ago where stomach ulcers come from, they would all have given the same answer: obviously it comes from the acid brought on by too much stress. All of them apart from two scientists who were pilloried for their crazy, whacko theory that it was caused by a bacteria. In 2005 they won the Nobel prize. The "consensus" was wrong.'

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