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Potemkin Villager



Joined: 14 Mar 2006
Posts: 782
Location: Narnia

PostPosted: Wed Sep 14, 2016 4:22 pm    Post subject: Groovy Graphic Reply with quote

http://www.bloomberg.com/graphics/2015-whats-warming-the-world/
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woodburner



Joined: 06 Apr 2009
Posts: 3382

PostPosted: Wed Sep 14, 2016 7:08 pm    Post subject: Reply with quote

Interesting.

Quote:
The question is what are we going to do about it?


There is nothing that is going to stop the trend in the short term, and not being able to stop it will mean the system will probably change catastrophically.
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Potemkin Villager



Joined: 14 Mar 2006
Posts: 782
Location: Narnia

PostPosted: Thu Sep 15, 2016 8:06 am    Post subject: Reply with quote

The graphs imply that atmospheric aerosols from burning fossil fuels has a nett cooling effect of a very significant half a degree. Imagine if we stopped all emissions tomorrow. As a result the aerosols would reduce in a short period of time, presumably in a similar manner to post volcanic eruptions, leading to a dangerous increase in warming!
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PS_RalphW



Joined: 24 Nov 2005
Posts: 5267
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PostPosted: Thu Sep 15, 2016 8:57 am    Post subject: Reply with quote

This is true, has to some extent already happened with the desulphurisation of coal burning, and was demonstrated on 12/9/2001 when the US shut down all aviation and the skies turned magically blue.
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Potemkin Villager



Joined: 14 Mar 2006
Posts: 782
Location: Narnia

PostPosted: Thu Sep 15, 2016 11:15 am    Post subject: Reply with quote

So, attempts to reduce temperature by reducing GHG gases gradually would take a long time to kick in. Any cooling effect resulting from this would however be offset by a reduction of the cooling effect due to aerosols which will kick in relatively quickly.

Oh s**t!
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