The problem is that the Enlightenment dream may make too many demands on poor African apes like us. We may just not be up to it.

Ethics is prescriptive and can change behavior, but usually only at the margins.

Climate change involves behaviors that are individually negligible, whose impacts go far beyond the spatial and temporal constraints that define our sense of community.

We live in a world in which everyone wants solutions. But we can't find solutions if we don't understand the problems, and we can't understand the problems without knowing how we got here.

If you're interested in doing something about climate change as we all should be, all of us who care about future people and creatures that will inhabit this world. Then buying a Prius is a good thing but an even better thing would be to be on the streets demanding urgent action from the United States' Congress.

It's obvious that there are vast variety of consequentialist views, depending on what we think goodness consists in, what our notion of consequence is, and what level (or levels) of human action we think the principle should be applied.

You can't imagine anything like nature as we know it without predators.