Friday, November 26, 2010

Climate change

Yes, that's about how it is. In this morning's Independent:
The scientific debate is not between deniers and those who can prove that releasing massive amounts of warming gases will make the world warmer. Every major scientific academy in the world, and all the peer-reviewed literature, says global warming denialism is a pseudo-science, on a par with Intelligent Design, homeopathy, or the claim that HIV doesn’t cause AIDS. One email from one lousy scientist among tens of thousands doesn’t dent that. No: the debate is between the scientists who say the damage we are doing is a disaster, and the scientists who say it is catastrophe.


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Now there is a radically different theory that is gaining adherents, ominously named the Medea hypothesis. The paleontologist Professor Peter Ward is an expert in the great extinctions that have happened in the earth’s past, and he believes there is a common thread between them. With the exception of the meteor strike that happened 65 million years ago, every extinction was caused by living creatures becoming incredibly successful – and then destroying their own habitats. So, for example, 2.3 billion years ago, plant life spread incredibly rapidly, and as it went it inhaled huge amounts of heat-trapping carbon dioxide from the atmosphere. This then caused a rapid plunge in temperature that froze the planet and triggered a mass extinction.


Ward believes nature isn’t a nurturing mother like Gaia. No: it is Medea, the figure from Greek mythology who murdered her own children. In this theory, life doesn’t preserve itself. It serially destroys itself. It is a looping doomsday machine. This theory adds a postscript to Darwin’s theory of the survival of the fittest. There is survival of the fittest, until the fittest trash their own habitat, and do not survive at all.


But the plants 2.3 billion years ago weren’t smart enough to figure out what they were doing. We are.

source


The window to act has come and gone. Hansen and others are fiercely fighting but all I can see is inaction, obstruction and Kyoto ending soon.

This is it.





PS I do like Hari's comment that we can choose to do things differently. I still have hope struggling against my inner cynic. Who knows.

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