Associated Press: Greenhouse gases are making the world's oceans hot, sour and breathless, and the way those changes work together is creating a grimmer outlook for global waters, according to a new report Wednesday from 540 international scientists. The world's oceans are getting more acidic at an unprecedented rate, faster than at any time in the past 300 million years, the report said. But it's how this interacts with other global warming impacts to waters that scientists say is getting them even more worried....