Researchers at the University of Rochester have discovered why oxygen-rich surface waters produce methane, a mystery that has intrigued science for years. The answer lies in bacteria that decompose organic matter when phosphate is lacking. With ocean warming reducing nutrient mixing, methane production may increase, creating a cycle of [...] Researchers at the University of Rochester discovered why oxygen-rich surface waters produce methane, a mystery that has intrigued science for years. The answer lies in bacteria that decompose organic matter when phosphate is lacking. With global war... [6289 chars]