I take seriously the idea that we are African Apes who (at least for the moment) dominate the planet, but our psychology is pretty much what it was when we were living in small groups on the savanna.

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.

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

Citizens often think of a state's interests in terms of the promotion of ideals such as democracy, a particular way of life, or other values which they endorse or see as part of their historical continuity and identity. In this domain as in others values are not fixed, and so a state's interests are dynamic and in a constant state of negotiation and construction.

In this era of globalization we are witnessing struggles within individual states about what their identity and interests consist in.

There'll come a time when airplanes are much more efficient when it comes to producing lower levels of greenhouse gas emissions, there'll come a time when we'll be able to offset those emissions much more effectively than we do now. But alas at the moment, flying airplanes is really one of the least defensible things that we do and it's one of the things that I indulge in quite frequently, alas.

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