Since it's technically possible and not all that hard to get going, we really need to talk about it and hopefully get treaties in place before someone takes this technology and does something massively stupid ....
Something to think and talk about. A presentation taped September, 2007, long before Climategate or Superfreakeconomics.
For more, visit http://www.newcoolthang.com/index.php/2009/11/global-warming-tedtalks-2/1610/
There is a lot to think about, especially since almost any approach is likely to create incredible human hardship and suffering, from doing nothing to aggressive responses, both in crashing the world economies to stop carbon emissions to risk taking without proper study.
A lot to think about.