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When it comes to global warming, however, this is precisely why we’re headed off a cliff, why the Copenhagen talks that open this week, almost no matter what happens, will be a disaster. Because climate change is not like any other issue we’ve ever dealt with. Because the adversary here is not Republicans, or socialists, or deficits, or taxes, or misogyny, or racism, or any of the problems we normally face -- adversaries that can change over time, or be worn down, or disproved, or cast off. The adversary here is physics.

Physics has set an immutable bottom line on life as we know it on this planet. For two years now, we’ve been aware of just what that bottom line is: the NASA team headed by James Hansen gave it to us first. Any value for carbon dioxide (CO2) in the atmosphere greater than 350 parts per million is not compatible "with the planet on which civilization developed and to which life on earth is adapted.”  That bottom line won’t change: above 350 and, sooner or later, the ice caps melt, sea levels rise, hydrological cycles are thrown off kilter, and so on.

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They'll sign some kind of paper in Denmark -- that became all but certain on Friday night when Obama announced he'd jet in for the meeting's close.  European leaders and some environmental groups may then call it a “qualified success,” and on we will go through more years of negotiation. In the meantime, physics will continue to operate, permafrost will continue to thaw, sea ice to melt, drought to spread.

It’s like nothing we’ve ever faced before -- and we’re facing it as if it’s just like everything else. That’s the problem.

 

full article: http://www.truthout.org/1207095

zora
http://zora.blogger.ba
10/12/2009 01:21