None of us are rational economic men as we're supposed to be portrayed in economic theory where mixes of passions, of desires, of moral principles, of self-deception, of altruism, of concern of others, of concerns for ourselves and an interest in our bank accounts. And social policies have to be responsive to the complexity of who we are as people or else, like the war on drugs, they're simply going to fail.

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

Is it in the UK's interests to leave the EU? It depends on your values. The answer can't be read off of GDP statistics under various scenarios or some measures of global influence.

The erosion of agency has consequences for our politics. As a result of all this, the fundamental ethical challenge of the anthropocene is the recovery of agency, or alternatively to come to terms with its loss and to understand how to go on.

Environmental problems provoke challenges about what kind of world we want, how important we think it is if something is brought about by human action or by brute nature, what we think of the value of human life compared to that of other living things.

Acts are right in virtue of the goodness of their consequences.

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