Darwin, climate, DNA and ID cards

Darwin's Origin of Species was apparently published 150 years ago today.

Our ability to understand science hasn't increased by much since then judging by the cranky arguments put forward by climate change deniers.

On the other hand the British public is showing an admirable sense of scepticism about ID cards - only 538 early adopters have signed up for one so far.

But then they probably have your DNA anyway.