ScienceDaily: Rising levels of CO2 released by anthropogenic activities are driving unprecedented changes in the chemistry of the oceans. The mean ocean surface acidity has increased by a near 30% as the advent of the Industrial Revolution. In agreement, ocean acidification is receiving increasing attention because of its potential to affect marine ecosystems. A research, headed by researchers at the University of Barcelona, shows that a decrease from pH 8.1 to 7.9 observed in a CO2 vent system at 40 m depth...