What threatens the world's oceans? Overfishing is hazardous to oceans / Elizabeth Kolbert ; Overfishing is no longer a danger to oceans / Gloucester Times ; Carbon emissions cause dangerous ocean acidification / Carl Zimmer ; Claims about ocean acidification are overblown and scientifically baseless / Christopher Monckton ; Offshore oil drilling endangers oceans / Natural Resources Defense Council ; Offshore oil drilling poses no danger to oceans / Humberto Fontova ; The extent of the great Pacific garbage patch has been grossly exaggerated / Oregon State University News and Research Communications --
What ocean policies are best? The National Ocean Policy benefits businesses / Michael Conathan ; The National Ocean Policy endangers businesses / Pete Winn ; Marine protected areas are essential for ensuring ocean biodiversity / Chris Maser ; Marine protected areas unfairly hamper fishing interests and offer limited environmental benefits / Dan Bacher ; The Clean Water Act can help fight ocean acidification / Kate Halloran ; Three reasons for creating a single ocean health index / Ben Halpern, Karen McLeod, and Jameal Samhouri --
What strategies would best promote sustainable fishing? Maximum sustainable yield policies can save fish stock / European Commission ; Maximum sustainable yield policies are problematic / Carl Safina ; Catch share can help avert fishery collapse / CompassOnline ; Reports of fishery collapse are exaggerated / Ray Hilborn ; Offshore fish farming poses grave risks to the environment / Ocean Conservancy ; Offshore fish farming offers both environmental risks and benefits / Harold F. Upton and Eugene H. Buck ; Catch shares do not protect fish or the environment / Food and Water Watch --
What impact do human activities have on marine mammals? Deepwater exploratory sonar kills dolphins and whales / KiPNews ; Proper guidelines can protect marine mammals from the effects of sonar / National Oceanic and Atmospheric Administration ; Oil spills cause long-term health issues for marine mammals / Peter Beaumont ; Salmon from countries that allow fish farmers to kill marine mammals should be boycotted / David Ainsley, Kurt Beardslee, et al. ; Hunting of marine mammals needs to be regulated / Doug O'Harra.