Andrew Simms is the head of new economics foundation (nef), a U.K. “think tank” that has published many reports centering on consumption, economic growth, and in this talk, Limits to Growth. Again he cites the pioneering work of Herman Daly and ecological economics as a response to resource depletion, climate change and exponential growth on a finite planet. An excellent and energetic speaker.

Their website is full of great stuff to download and at the forefront of solutions.  http://www.neweconomics.org/