The Heartland Institute knows all about global warming skepticism. Indeed, you could say we wrote the book. So we were surprised that a play about global warming skepticism called "The Heretic" is now running in London — and that the left-wing Guardian newspaper gave it favorable notice. A quick summary of the play: [It] starts from a promising premise: the isolation of Dr Diane Cassell, a leading light in the earth sciences department of a Yorkshire university. Her speciality is measuring sea levels in the Maldives, and her pragmatism leads her to conclude they have not risen in 20 years. Inevitably her...