Watts Up With That?

While pro-warming political pundits like to demonize climate skeptic research by comparing it to that of tobacco company research and marketing, it seems there is a parallel between the story of global warming and marijuana demonization. This story is about the parallels in research, and does not represent any position on drug use by WUWT – Anthony

Guest Essay by Dr. Robert G. Brown, Duke University (elevated from a comment)

Judith Curry’s remarks [Scientists and motivated reasoning], as usual, are dead on the money.

Here’s an almost perfectly analogous problem: CNN recently completely reversed its editorial policy and now calls for the legalization of Marijuana. Sanjay Gupta, its “resident physician editorialist”, who had previously somewhat vigorously led this opposition from the scientific point of view completely reversed his own position, and explained why in considerable detail both in text and in online video.

Historically, marijuana was both

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