Jean-Pierre Gattuso et Richard A. Feely ont rédigé le chapitre "Ocean acidification" du rapport Future of the Ocean and its Seas: a non-governmental scientific perspective on seven marine research issues of G7 interest soumis aux ministres des sciences et technologies du G7 en amont d'une réunion au Japon du 15 au 17 mai 2016.

Le rapport est publié par les institutions suivantes : International Association of Physical Sciences of the Oceans (IAPSO), International Union of Geodesy and Geophysics (IUGG), International Council for Science (ICSU).

Messages clés du chapitre "Ocean acidification" [en anglais] :

  • Ocean acidification is mainly driven by increasing atmospheric carbon dioxide (CO2). The scale of future ocean acidification, and its biogeochemical, ecological and socio-economic impacts, will be determined by the scale of future CO2 emissions.
  • Calcifying organisms, such as corals and molluscs, show greatest sensitivity to ocean acidification.
  • Wider biological responses are variable and interact with other factors: effects on marine ecosystems and ecosystem services are therefore uncertain. Nevertheless, even low emission scenarios seem likely to result in moderate-to-high risks by 2100.
  • Direct mitigation (emission reduction) is the most effective way of reducing future impacts; there may also be potential for societal adaptation at the local level.
  • Additional observations and research will improve model-based projections of future conditions.

Lire le rapport en ligne