"Dr Diane Cassell is a leading light in the Earth Sciences department of a major Northern university and a climate-change sceptic. And when your daughter is an anorexic eco-warrior and your boss thinks global warming is a cash cow, that's bound to lead to trouble, not to mention death threats from the Sacred Earth Militia.

Richard Bean's riotous black comedy The Heretic dares to question the prevailing belief in man-made climate change and separate the science from the spin. Awarded the 2011 Evening Standard Award for Best Play."

Contains strong language.