We rushed into renewable energy without any thought. The schemes are largely hopelessly inefficient and unpleasant. I personally can't stand windmills at any price.

Climatologists are all agreed that we'd be lucky to see the end of this century without the world being a totally different place, and being 8 or 9 degrees hotter on average.

The tropical rain forests are a telling example. Once cut down, they rarely recover. Rainfall drops, deserts spread, the climate warms.

There aren't just bad people that commit genocide; we are all capable of it. It's our evolutionary history.

If we gave up eating beef we would have roughly 20 to 30 times more land for food than we have now.

One pound of uranium is worth about 3 million pounds worth of coal or oil.

The inertia of humans is so huge that you can't really do anything meaningful.