The Problem With Sand

If we have a sand shortage, Olympic beach volleyball, new homes and roads, fracking, water filtration, and so much more will be affected.

The Green Blog: An Environmental Bet

33 years ago, an environmentalist and a economist made a $1000 bet. In The Population Bomb (1968), Paul Ehrlich predicted global ecological calamity. Disagreeing, Julian Simon said that free markets would solve environmental problems. The bet involved the prices of…