[geo] FW: Arctic Sea Emits Methane - Science News

2012-04-24 Thread Rau, Greg
http://www.sciencenews.org/view/generic/id/340200/title/Arctic_sea_emits_methane Arctic sea emits methane Source of climate-warming gas remains uncertain, but might be microbes By Janet Raloffhttp://www.sciencenews.org/view/authored/id/18/name/Janet_Raloff Web edition : Monday, April 23rd, 2012

[geo] Space Based SRM

2012-04-24 Thread Michael Hayes
Hi Folks, If we could get this group to deposit their left over material between the sun and earth, we could have a space based sun shield. Once the need for such a shield is over (if ever) the material could be scooped up and used as reaction mass for some future craft.

Re: [geo] Space Based SRM

2012-04-24 Thread Mike MacCracken
There is a wonderful book about getting materials from asteroids (and otherwise using them). It is titled ³Mining The Sky: Untold Riches From The Asteroids, Comets, And Planets² by John Lewis. Wonderfully creative ideas. From some of the info in the book, the calculation that is suggested could

[geo] geoengineers as God(s)?

2012-04-24 Thread RAU greg
ET asks whether engineers should play God, making fundamental changes to the environment and attempting to control climate change. Should engineers control the eco-system? 23 April 2012By Anne Harris With the visible effects of climate change growing, is it time for engineers to step in

Re: [geo] geoengineers as God(s)?

2012-04-24 Thread Mike MacCracken
What a truly terrible title (or maybe tag line) for an article in a science magazine. Both greenhouse gas induced climate change, and the proposed response to it, are, or would be, a result of humans relying on the laws of physics and chemistry‹not some sort of super power. Whom does the article