Yale Environment 360: A team of scientists has published the most comprehensive analysis yet of how acidity levels vary across the worlds oceans. Drawing on four decades of measurements, researchers from Columbia University and the University of Colorado mapped changes in ocean acidity by season and location, as well as how acidity levels affect the stability of shell-building minerals. The maps reveal that the northern Indian Ocean is at least 10 percent more acidic than the Atlantic and Pacific oceans, possibly due...