The articles presented span a range of topics and perspectives, from Steven M. Wise on animal rights to Bjorn Lomborg on environmental alarmism, Elizabeth Economy on China’s pollution problem, and Fred Krupp on fracking. Reading them over, it is hard not to be shaken by the scale of the damage being wrought on the planet and its non-human inhabitants by rapid, unregulated growth around the globe. But it is also hard not to recognize how much sensible public policy could do to address the problem. We hope this is a useful guide in those efforts.