People who go around saying that it is wrong to fly and to eat meat are not so much making appeals to us from within our shared morality, but engaging in something more like "persuasive definition." They want us to look at the world and ourselves in a different way. Someday these prohibitions against flying and eating meat may be written into our moral psychology, but it will only be after there are viable, widely shared alternatives that are beginning to be widely adopted.

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 Paris climate conference in December, 2015 was a recognition that countries bring their climate policies to international meetings rather than create them during the negotiations (much less do they receive orders from the international community and then go home and implement them).

We live on a restless planet in a violent universe.

Kantians are saddled with absolutist views, Aristotelians are accused of vagueness, and there is almost no horror to which Consequentialists are innocent of, according to some critics. While all these families of views have been victimized in these ways, Consequentialists have gotten the worst of it. I think this may have something to do with the fact that Kant and Aristotle are acknowledged to be great philosophers, and we tend to read the greats sympathetically, while Consequentialism is a family of views not rooted in the work of a single great man to whom this kind of deference is owed.

It's true that climate change is an unprecedented problem so it's not surprising that it's so difficult to address.

It's possible that we'll screw up the climate so badly that most of us will die and a few breeding pairs will remain somewhere in the arctic. What's more likely is that we'll continue remaking the planet, driving many species to extinction, killing millions of people through the indirect effects of climate change, making life even harder for the poor and powerless than it is now, and making it a little more difficult for the global middle class to live the lives to which they have become accustomed - in other words, business as usual, only worse.