I take no pleasure in the fact that the scientific predictions I've relayed to popular audiences turn out to be true.

A true believer is a danger to humanity.

Our world faces a true planetary emergency. I know the phrase sounds shrill, and I know it's a challenge to the moral imagination.

No real reason for the lack of sleep, it’s a disadvantage of rotating shifts that every so often your body clock just throws up it’s hands in despair and goes to sulk behind the sofa – leaving you suffering insomnia and/or intense fatigue.

Science has a culture that is inherently cautious and that is normally not a bad thing. You could even say conservative, because of the peer review process and because the scientific method prizes uncertainty and penalises anyone who goes out on any sort of a limb that is not held in place by abundant and well-documented evidence.

What is really beautiful must always be true.