FYI -- I've been arguing for a massive fire after the asteroid for a number of years now; although my hypothesized fire would have been even bigger... ...because back then, *everything* was "an oil field", so the asteroid didn't have to have very good aim. http://www.latimes.com/science/sciencenow/la-sci-sn-dinosaurs-asteroid-soot-... After asteroid hit, a giant cloud of smoke led to dinosaurs demise, study says Researchers from Japan argue that the 6-mile-wide chunk of rock slammed into an oil field in the present day Yucatán Peninsula and triggered a burning inferno that launched a massive cloud of smoke into the sky. The resulting layer of soot that enveloped the globe would have been just the right thing to kill the dinosaurs and most other land-dwelling creatures, said study lead author <http://db.tohoku.ac.jp/whois/e_detail/1559a90e9e8a12af48d792940027a6c6.html>Kunio Kaiho, a paleontologist at Tohoku University in Japan. ...