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Reason why I prefer the name "Global Climate Change" over "Global Warming."

While there is solid evidence the planet is moving to a warmer - how much?  Nobody knows - overall climate the local impact will vary.  Some areas will get worse; some areas will get better; some areas will stay the same.


She believed in nothing; only her skepticism kept her from being an atheist. -- Jean-Paul Sartre

by ATinNM on Wed Sep 2nd, 2009 at 11:31:58 AM EST
But what changes do global climate change models predict for the Sahara?  The received wisdom in my youth was that the Sahara was expanding due to more droughts and over-grazing.  The time frame for these changes - the last 20 years - suggests that human induces climate change may be having a beneficial effect at least in the Sahel.

notes from no w here
by Frank Schnittger (mail Frankschnittger at hot male dotty communists) on Wed Sep 2nd, 2009 at 03:27:24 PM EST
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this is in fact an expected change.

What Global Warming means is that climate zones shift, and that includes all climate zones. At the same time the northern boundary of the desert bands moves north, the southern boundary also moves north. In effect, the tropics expand. So the Sahel is where you´re expected to see it, and if they´re seeing it now in the Sahel as the article seems to say, then that is just as much in line with Global Warming expectations as the desertification of Spain.

by marsanges on Wed Sep 2nd, 2009 at 11:21:51 PM EST
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I think there is this theory that says that a lot of the desertification and starvation in the Sahel in the 70's and 80's was due to particulate emissions in Europe. When we cleaned up our factories and power plants the desertification stopped and reversed, in spite of the fact that the clearer air also meant higher global temperatures.

Peak oil is not an energy crisis. It is a liquid fuel crisis.
by Starvid on Fri Sep 4th, 2009 at 03:43:06 PM EST
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nice to see you here, marsanges. are you in marseille?

'The history of public debt is full of irony. It rarely follows our ideas of order and justice.' Thomas Piketty
by melo (melometa4(at)gmail.com) on Sat Sep 12th, 2009 at 07:35:14 AM EST
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