We live on a restless planet in a violent universe.

If you have a flat, fixed view of state interest then it is difficult to understand why some states adopt aggressive climate change policies, even when that risks economically disadvantaging them, and other states do not even when it would be in their economic interests to do so.

Is it in the interests of Britain to leave or remain in the EU? As we saw in the referendum, there are different Britains and they see their interests in different ways. For a lot of everyday blokes the EU affected their sense of identity in ways they disliked, and they were right in thinking that the EU didn't return much to them by way of economic benefits.

I think when it comes to climate change, the single most important thing in the world is for the United States' Congress to pass an effective bill that will put a price in carbon because if it starts costing something to emit carbon, this will provide an incentive, people do act on the basis to some extent of economic incentives to emit fewer greenhouse gases.

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

Ethical systems are fundamentally conservative and primarily directed towards regulating interactions within communities.

People will suffer and so will nature, but life is likely to go on with a great deal of loss and mourning. Human adaptability and resilience will still be alive, and so will that great need and resource of ours called love.