Global ocean changes result from regional changes in these properties, assessed in this section. (ipcc.ch)
Ancient marine life may have developed from soft - bodied animals into creatures with hard body parts as oxygen levels rose and calcium and magnesium levels in prehistoric oceans changed, researchers say. (sciencedaily.com)
For the first time in this report, acidification was given ample consideration along with other ocean changes, such as temperature and sea level rise. (oceanacidification.de)