Crichton on the Environment
Disclaimer: I'm not really a fan of Crichton. He was a tolerably good science fiction writer, though not in danger of being called a "Grand Master", which may be why he mostly got out of it. His latest efforts aren't really science fiction so much as Hollywood "sci-fi", where you read a couple of newspaper reports on a new technology, read a couple of summarizations from wild-eyed advocates and equally wild-eyed naysayers, and start writing without particularly caring if you even stay true to those sources. No need for real science. (Contrast this to the Jurassic Park book, which had a reasonably coherent use of chaos theory, for instance.) I went into this speech expecting to dislike it.