claim: Last December, the respected  journal “Oceanography” published projections (see graphic below) for this rising acidity, measured by falling pH
evidence: It is expected to drop by a further 0.3 to 0.5 pH units (an additional doubling to tripling of today's post-industrial acid concentrations) by 2100 as the oceans absorb more anthropogenic CO 2, the impacts being most severe for coral reefs and the Southern Ocean.
category: Ocean acidification