I remember reading this in the economist a long time ago: http://www.economist.com/node/8173039 http://www.economist.com/node/8173039 It advocates a market-base

I remember reading this in the economist a long time ago: http://www.economist.com/node/8173039 http://www.economist.com/node/8173039 It advocates a market-based solution. At the time I thought it made a lot of sense. I still think it does.