That's just the financially impractical side of it....and that's still based on the presumption that AGW is a function of CO2 output....and that those efforts would in fact impact it.
If man's CO2 output is truly causing global warming, our only solution is to get Algore on a nuclear powered aircraft. But there's a case of which do you worry about more...the nuke going critical or Algore???
..Slightly off topic...Don't know if I posted this somewhere, but I found this article pretty interesting...
"...The World Investment Report last year highlighted the transformation of world oil and gas supply from a private investor-controlled — and market driven — business to a state-controlled business. The top 10 oil firms in the world are all state owned, accounting for 77% of the total, with Russian firms controlling another 6%. Only about 10% of world oil reserves are in the hands of investor-owned firms such as Exxon Mobil...."