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

The big threat to the planet is people: there are too many, doing too well economically and burning too much oil.

This programme to stop nuclear by 2020 is just crazy. If there were a nuclear war, and humanity were wiped out, the Earth would breathe a sigh of relief.

So-called 'sustainable development' is meaningless drivel.

The climate is doing its usual tricks. There's nothing much really happening yet. We were supposed to be halfway toward a frying world now.

We are in a fool's climate, accidentally kept cool by smoke, and before this century is over billions of us will die and the few breeding pairs of people that survive will be in the Arctic where the climate remains tolerable.

Only nuclear power can now halt global warming.