[geo] Re: Balancing the pros and cons of geoengineering

2009-05-09 Thread Alan Robock
Dear Stephen, I would not put much faith in this highly idealized model, unless it could be shown to actually simulate past monsoon variations. It is a nice intellectual exercise, but ignores many of the important processes of the climate system. Alan Alan Robock, Professor II Director,

[geo] Re: Balancing the pros and cons of geoengineering

2009-05-09 Thread Eugene I. Gordon
Good discussion. This is what geoengineering is all about. -Original Message- From: geoengineering@googlegroups.com [mailto:geoengineer...@googlegroups.com] On Behalf Of Alvia Gaskill Sent: Saturday, May 09, 2009 11:50 AM To: s.sal...@ed.ac.uk; rob...@envsci.rutgers.edu Cc:

[geo] Re: Funding air capture and CCS

2009-05-09 Thread Andrew Lockley
With respect Eugene, I have more qualifications in economics than I do in climate science. I've also got ample experience dealing with legislative changes through my work in NGOs. A 2009/5/9 Eugene I. Gordon euggor...@comcast.net So all of a sudden you are tax experts. Why don't you stick to

[geo] Re: Funding air capture and CCS

2009-05-09 Thread dsw_s
it is more economically sensible to tax where substitutes are readily available. If you're taxing to change behavior, yes. If you're taxing to raise revenue without distorting markets, no. If we tax high-carbon activities to fund mitigation in other areas, we're taxing for revenue; if we

[geo] Re: Balancing the pros and cons of geoengineering

2009-05-09 Thread Andrew Lockley
A few comments on that:1) Droplet size shouldn't affect chemistry. Both surface area and the cross sectional area are proportional to the square of the radius. Volume affects residence time, and is proportional to the cube of the radius. Big droplets are shorter-lived, and hence more

[geo] Re: air capture techniques

2009-05-09 Thread Stuart Strand
I think that should be methanotrophic not methanogenic, if you are discussing the removal of methane from the air. = Stuart = Stuart E. Strand 167 Wilcox Hall, Box 352700, Univ. Washington, Seattle, WA 98195 voice 206-543-5350, fax 206-685-3836 skype: stuartestrand

[geo] Re: Balancing the pros and cons of geoengineering

2009-05-09 Thread dsw_s
Droplet size may affect chemistry because of surface tension. At sufficiently small scales, a high-curvature surface isn't the same chemically as a lower-curvature surface. My impression is that the Brewer Dobson circulation is the net circulation after east-west wind is canceled out, since the