We spend probably more of our time than we should, just because it's close to home, worrying about the West. But it's equally important to figure out how we're going to free up the resources to let the developing world leapfrog the fossil fuel age. That's at least as mathematically important, and at least as morally crucial.

But tolerance by itself can be a cover for moral laziness.

My house is covered in solar panels, I'm a great believer in all this - we all should be doing this.

we use TV as we use tranquilizers- to even things out, to blot out unpleasantness, to dilute confusion, distress, unhappiness, loneliness.

There is a tendency at every important but difficult crossroad to pretend that it's not really there.

All the science in the last few years, or almost all of it, really serves to show that the [climate] effects are larger and more rapid than we had thought even a decade ago.

In the end, climate change is a math problem.