Dr Jason Hall-Spencer, of Plymouth University, says that the combination of ocean acidification and rising water temperatures kills off corals, shellfish and other valuable marine life – posing a risk to industries such as fishing and tourism.

Man-made carbon emissions since the industrial revolution have acidified the oceans far beyond natural levels, research suggests.

If you drive, fertilize your lawn, or buy sushi, you could be contributing to the demise of coral reefs.

West Coast shellfish growers have learned to work around upwellings of corrosive waters and save the lives of their bivalve stocks.

Global warming has brought a new normal to the Arctic, with warmer air and ocean temperatures, thinner and less expansive summer sea ice, and greener vegetation in coastal regions abutting the open water.

The rise in human emissions of carbon dioxide is driving fundamental and dangerous changes in the chemistry and ecosystems of the world's oceans, international marine scientists have warned.