When 74 scientists voted on the cause of the volcano at a meeting of the American Association of Petroleum Geologists in October, 42 said drilling was the trigger, 16 thought the evidence inconclusive, and 13 favored both drilling and earthquake. (discovermagazine.com)
He left that job to spend 5 years as a senior petroleum geologist for Exxon, hunting for oil and gas in offshore areas of southern California. (sciencemag.org)