Change our behaviors or expect significant economic and ecosystem loss to our world’s oceans. - Nov. 14, 2013
Science Daily reported yesterday that experts conclude the acidity of the world’s ocean may increase 170 percent by the end of this century.
The summary was led by the International Geosphere-Biosphere Program and results from the world's largest gathering of experts on ocean acidification ever convened. The Third Symposium on the Ocean in a High CO2 World was held in Monterey, California (September 2012), and attended by 540 experts from 37 countries. The summary will be launched at the UNFCCC climate negotiations in Warsaw, 18 November, for the benefit of policymakers.
Experts conclude that marine ecosystems and biodiversity are likely to change as a result of ocean acidification, with far-reaching consequences for society. Economic losses from declines in shellfish aquaculture and the degradation of tropical coral reefs may be substantial owing to the sensitivity of molluscs and corals to ocean acidification.
One of the lead authors of the summary, and chair of the symposium, Ulf Riebesell of GEOMAR Helmholtz Centre for Ocean Research Kiel said: “What we can now say with high levels of confidence about ocean acidification sends a clear message. Globally we have to be prepared for significant economic and ecosystem service losses. But we also know that reducing the rate of carbon dioxide emissions will slow acidification. That has to be the major message for the COP19 meeting.”
The summary for policymakers makes 21 statements about ocean acidification with a range of confidence levels from “very high” to “low.”
Very high confidence