Ocean acidification monitoring system launched
June 13, 2007
Studies have shown that increased atmospheric carbon dioxide levels are acidifying the world's oceans. This is significant for coral reefs because acidification strips carbonate ions from seawater, making it more difficult for corals to build the calcium carbonate skeletons that serve as their structural basis. Research has shown that many species of coral, as well as other marine microorganisms, fare quite poorly under the increasingly acidic conditions forecast by some models.
Observed and projected decline in global ocean pH, 1750-2100. Photo by Rhett A. Butler
"The Gulf of Alaska region is particularly important because it is likely to be one of the first regions to feel the impacts of ocean acidification," said Christopher Sabine, an oceanographer at NOAA's Pacific Marine Environmental Laboratory.
Tropical ocean dead zones could increase 50 percent by 2050
(11/18/2008) If carbon dioxide levels continue to rise as expected, marine dead zones in the tropics are expected to increase by 50 percent in just over four decades, according to a new study from the Leibniz Institute of Marine Sciences in Germany. The expansion of marine dead zones in tropical seas could have devastating impacts on ocean ecosystems and fisheries.
Group may sue EPA under Clean Water Act to address ocean acidification
(11/14/2008) An environmental group plans to sue the U.S. Environmental Protection Agency for failing to uphold water standards in the face of ocean acidification.
Stopping ocean acidification would save billions of dollars in revenue
(11/12/2008) A new report from Oceana shows that action taken now to curb ocean acidification would not only preserve the world's coral reefs, but also save billions in lost revenue in the fishing and tourism industries.
Effects of ocean acidification will come 30 years earlier than expected
(11/11/2008) The Southern Ocean may be 30 years closer to a tipping point for ocean acidification than previously believed, putting sea life at risk, according to research published in this week's Proceedings of the National Academy of Science.
'Safe' CO2 level may destroy the fishing industry, wreck reefs
(9/23/2008) An atmospheric carbon dioxide concentration of 450 parts-per-million (ppm) — a target level deemed safe by the United Nations Framework Convention on Climate Change (UNFCCC) — would be devastating to marine ecosystems warn scientists writing in the journal Geophysical Research Letters.