Before I will believe the claim of 500+ million tons of methane a year from sauropods, I will need to see more proof and less speculation. I would think methane in high amount would leave behind some physical evidence. Also was not the Earth much warmer during the reign of the dinosaurs? Even thou the Sun was cooler then? Hmmm, maybe dino farts are why. lol
Ooops, I just read the entire article, I posted my comment after only reading the first couple of paragraphs. I should know better then to do that by now. Sorry bout wasting your time.