Prediction is a very difficult business, particularly about the future

Dabbling in astrology is like carrying a lucky rabbit's foot as an omen of good luck which costs us very little and might have some beneficial effects.

The Earth is warming but physical evidence from around the world tells us that human-emitted carbon dioxide has played only a minor role in it. Instead, the mild warming seems to be part of a natural 1,500-year climate cycle (plus or minus 500 years) that goes back at least one million years.

Evidence of warming is not evidence that the cause is anthropogenic.