Effective climate policy requires global emissions of greenhouse gases to be cut drastically, which in energy sectors can be achieved by lower emissions supply technologies, greater energy use efficiency, and substitution in demand. For policy to be efficient requires fairly uniform, pervasive...

The stabilization of global climate presents one of the most complex problems in public good provision the world has faced. Continuation of ‘business as usual’ policies, leading to warming of more than 2 degrees over the next year, will produce significant damage to agricultural systems and...