A LARGER CRISIS THAN ANY THAT typically makes the evening news-a terrorist attack, a relentless war that claims civilian lives as "collateral damage," the lengthening shadow of death cast by a fatal virusengulfs us all, even those who are sheltered from the cruel afflictions to which a good portion of humankind is still subject, especially in the global South. Over the last few years, as the opening article in this roundtable by Todd LeVasseur so clearly sets out, a consensus has slowly been emerging among members of the scientific community that climate change is presently taking place at a rate which is unprecedented in comparison with the natural climate change cycles that have characterized our earth in the course of the last half a million years; moreover, as successive Assessment Reports of the International Panel on Climate Change (IPCC) (2007) have affirmed, global warming is, to an overwhelming degree, the consequence of human activity. Scientists and increasingly other commentators-various practitioners of the social sciences, journalists, and policy makers-are now inclined to the view that this