One for DimPrawn - Lawson on climate change:
http://www.timesonline.co.uk/tol/com...cle6927598.ece
http://www.timesonline.co.uk/tol/com...cle6927598.ece
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The greatest error in the current conventional wisdom is that, if you accept the (present) majority scientific view that most of the modest global warming in the last quarter of the last century — about half a degree centigrade — was caused by man-made carbon emissions, then you must also accept that we have to decarbonise our economies.
Nothing could be further from the truth. I have no idea whether the majority scientific view (and it is far from a consensus) is correct. Certainly, it is curious that, whereas their models predicted an acceleration in global warming this century as the growth in emissions accelerated, so far this century there has been no further warming at all. But the current majority view may still be right.
Even if it is, however, that cannot determine the right policy choice. For a warmer climate brings benefits as well as disadvantages. Even if there is a net disadvantage, which is uncertain, it is far less than the economic cost (let alone the human cost) of decarbonisation. Moreover, the greatest single attribute of mankind is our capacity to adapt to changing circumstances. By adapting to any warming that may occur over the next century, we can pocket the benefits and greatly reduce the disadvantages, at a cost that is far less than the cost of global decarbonisation — even if that could be achieved.
Moreover, the scientific basis for global warming projections is now under scrutiny as never before. The principal source of these projections is produced by a small group of scientists at the Climatic Research Unit (CRU), affiliated to the University of East Anglia.
Last week an apparent hacker obtained access to their computers and published in the blogosphere part of their internal e-mail traffic. And the CRU has conceded that the at least some of the published e-mails are genuine.
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The greatest error in the current conventional wisdom is that, if you accept the (present) majority scientific view that most of the modest global warming in the last quarter of the last century — about half a degree centigrade — was caused by man-made carbon emissions, then you must also accept that we have to decarbonise our economies.
Nothing could be further from the truth. I have no idea whether the majority scientific view (and it is far from a consensus) is correct. Certainly, it is curious that, whereas their models predicted an acceleration in global warming this century as the growth in emissions accelerated, so far this century there has been no further warming at all. But the current majority view may still be right.
Even if it is, however, that cannot determine the right policy choice. For a warmer climate brings benefits as well as disadvantages. Even if there is a net disadvantage, which is uncertain, it is far less than the economic cost (let alone the human cost) of decarbonisation. Moreover, the greatest single attribute of mankind is our capacity to adapt to changing circumstances. By adapting to any warming that may occur over the next century, we can pocket the benefits and greatly reduce the disadvantages, at a cost that is far less than the cost of global decarbonisation — even if that could be achieved.
Moreover, the scientific basis for global warming projections is now under scrutiny as never before. The principal source of these projections is produced by a small group of scientists at the Climatic Research Unit (CRU), affiliated to the University of East Anglia.
Last week an apparent hacker obtained access to their computers and published in the blogosphere part of their internal e-mail traffic. And the CRU has conceded that the at least some of the published e-mails are genuine.
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