The combination of Michael Crichton’s recent publicity and Dean’s Nature of Science blog has me thinking about environmentalism. Few leftist utterings irritate me more than the environmental nonsense that I’ve heard since about 1990. It all started with my knowledge of freon, particularly R-12 and R-114. I spent 10 years in the submarine force. Freon is a very dangerous gas on submarines because of its weight and its tendancy to turn into phosgene gas upon heating.