Average marine acidity (pH) measured at agreed suite of representative sampling stations ( CBB )

This indicator is proposed as an indicator for Sustainable Development Target 14.3 Minimize and address the impacts of ocean acidification, including through enhanced scientific cooperation at all levels


15.5 (and disaggregated versions for other targets )

Data & Organisations

Responsible entities and national availability: IUCN Red List Partnership (http://www.iucnredlist.org/partners/partners-and-technical-support). Available globally since 1980s, and can be disaggregated to national and regional levels (Rodrigues et al. 2014 PLoS ONE 9(11): e113934).
IUCN Red List of Threatened Species (http://www.iucnredlist.org/); specifically for coral species (Carpenter et al. 2008 Science 321: 560–563).