What we have lived through, the 20th century, has been like a great party. Adults now have had the best time humanity has ever had. Now the party is over and the Earth is reckoning up.

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.

The Earth's population will be culled from today's 6.6 billion to as few as 500 million, with most of the survivors living in the far latitudes - Canada, Iceland, Scandinavia, the Arctic Basin.

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

The world has not warmed up very much since the millennium.

Civilization in its present form hasn't got long.

There is little evidence that our individual intelligence has improved through recorded history.