[Tloewald]

So with a magic wand and an incredible amount of money we'll only make the problem slightly worse.

And it's not clear how slightly -- climate change is being caused by accumulation of greenhouse gases during a period of reduced solar output (cyclical fluctuation of 0.1%). BTW 0.02% seems like a lot more when compared to the sun's cyclical variation of 0.1% (which has measurable effects) and suspected historical variations of perhaps 3% that caused ice ages.

http://en.wikipedia.org/wiki/Solar_variation

http://science.nasa.gov/science-news/science-at-nasa/2013/08...

[austinz]

0.02%, if you are building a hypothetical network of power plants with the same total surface area as the state of Maryland in orbit.