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Observations

Observations

Opinion, arguments & analyses from guest experts and from the editors of Scientific American

Are You a Global Warming Skeptic? Part IV

After a two-month hiatus, I've finally found the time to pick up the thread on doubts about global warming and humans' role in it. In previous installments, people wrote in with the reasons why they were skeptical and I tried to synthesize the responses...

July 5, 2006 — George Musser

Don't Forget About the Little Ethical Lapses

Since the whole South Korea stem-cell fiasco broke, there has been a lot of discussion about ethics in science. The discussion is certainly necessary, but it has a certain deja vu quality to it...

January 6, 2006 — George Musser

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