Regardless of whether one believes in climate change or not, ocean acidification is getting worse. The implications are broad and starting to show up globally.
http://apps.seattletimes.com/reports/sea-change/2013/sep/11/pacific-ocean-perilous-turn-overview/
http://apps.seattletimes.com/reports/sea-change/2013/sep/11/pacific-ocean-perilous-turn-overview/