One more from Cato. This debate is a perfect example why being cheap is likely to make you a better environmentalist than trying to chase the latest green fads. There are just too many variables. Is eating organic food better? Maybe it is because it doesn’t use fertilizers, etc. or maybe it’s not because it encourages clearing land to plant more land-intensive crops. Who knows? The market is the best method of solving these problems. This is also the strongest argument for a carbon tax – as long as someone can figure out the proper cost of the tax, which is, in my opinion, not a trivial problem.