2 birds with 1 stone.

One good way to pull out CO2 is planting a lot more trees...and it's a whole lot cheaper than blasting through the atmosphere.
D

Last Monday the BBC had a report on exotic ways of solving global warming.
One report was about an astronomer who was doing the preliminary calculations on placing mirrors in orbit to shield the earth of 2 percent of the sun's rays. He came to a cost of about a trillion dollars He used a maglev launcher to place the mirrors in orbit. The amortized cost for LEO was 10 dollars a kg. Instead of just mirrors why not SPSs to shield the Earth from 2 percent of Sunlight. And if that is too much energy for the Earth to use we could use the rest for chemical processes to pull out CO2 from the atmosphere.
BestRegards,
Pete

Date: Thursday, July 31, 2008, 9:05 AM

Please digg this youtube video from European Space Agency

http://digg. com/space/ ESA_advocates_ solar_power_ from_space

FACT: There aren't enough resources on this planet to sustain continued
human growth and increasing quality of life. FACT: If we want to avoid
catastrophic war, suffering, and global shortages of energy, we need to
start looking to space seriously for solutions. Solar Power Satellites
(SPS) are the answer.