Andrew Lockley wrote:
>> The trouble with assuming we won't cause a collapse of the ecosystem
is that there's quite a lot to suggest we might do just that. Even
setting aside the history of various civilisations trashed by minor
climate tweaks, and the extinction of prior forms of the Homo genus
caused by slightly larger climate swings, we've still got quite a lot to
think about. <<
Granted, there is a lot to think about. But as to the point of
historical civilizations collapsing from minor climate tweaks... those
were all rather primitive societies with few technologies with which to
address the changes they faced. Today we have vast abilities to alter
our local environment, if need be, by building canals to transport
water, desalinate seawater, genetically alter plants, build seawalls,
etc etc. Presumably those in the future will have even more options, and
cheaper energy to implement them with.
Analogies to past civilizations can easily be stretched too far.
David
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David Appell, independent science journalist
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m: St. Helens, OR USA
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