We develop a method for finding optimal greenhouse gas reduction rates under ongoing uncertainty and re-evaluation of climate parameters over future decades. Uncertainty about climate change includes both overall climate sensitivity and the risk of extreme tipping point events. We incorporate...

We empirically address the implications of biofuel policy regarding major grains, to the subsequent evolution of the markets for calories from the three major grains, maize, wheat and rice. The implied market variables, namely, market price, consumption, and stocks, using a structurally...