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Hi Andrew, In the Nathan Myrhvold interview video [1] he claims that stratospheric aerosols, deployed at high latitudes in both hemispheres, could not only cool the polar regions but halt global warming. Moreover he claims weather would not be adversely affected. This is according to his modelling - for which he uses conventional models. (a) Could such deployment save the Arctic sea ice? (b) Could such deployment halt global warming? (c) Could such deployment halt sea level rise? (d) Is the technology as benign as he says? If the answers to any of these questions is "possibly yes", then we should add to your questions for the NERC team. For example: (i) Do you believe governments should act on the precautionary principle? (ii) Are you aware of the polar amplification of global warming? (iii) Did you know that models suggest 4 degrees average global warming would result in up to 16 degrees warming in the Arctic? (iv) Are you aware of dangers of methane release from permafrost if Arctic regions continue to warm a few degrees? (v) Are you aware of potential sea level rise of 6 to 7 metres if the Greenland ice sheet melts? (vi) Would you support a means to quickly halt warming in the Arctic, on the precautionary principle, if it were not too expensive? (vii) Do you accept that global warming is having dangerous effects already, e.g. causing droughts in some countries, and sea level rise for others? (vii) If global warming could be halted, with low risk of significant adverse effects on weather or economic growth, would you support this? (viii) Do you accept scientific observations that the sea level is rising faster over the past decade than in previous decades? (ix) Do you accept that sea level rise, from global warming, is threatening low-lying countries and islands? (x) Would you be happy for sea level rise to be halted, if this could be done at reasonable cost and safety? Cheers, John [1] http://www.cnn.com/video/#/video/podcasts/fareedzakaria/site/2009/12/20/gps.podcast.12.20.cnn --- Andrew Lockley wrote: Dear NERC team, -- You received this message because you are subscribed to the Google Groups "geoengineering" group.To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en. |
- Re: [geo] FW: [Fwd: NERC public dialogue on geoengineering] Andrew Lockley
- Re: [geo] FW: [Fwd: NERC public dialogue on geoenginee... John Nissen
