Ocean acidification refers to the process by which atmospheric carbon dioxide dissolves in seawater, producing carbonic acid which lowers the pH of the surrounding seawater.
Regular Websites
Sponsored by the European Project on Ocean Acidification, regularly updated news articles and discussions on the subject are posted here, and archived for further research. - EPOCA: Ocean Acidification
http://oceanacidification.wordpress.com/
Maintained by the Pacific Marine Environmental Laboratory, which carries out scientific investigations in oceanography and atmospheric science, an overview of the problem is stated here, along with fact sheets, research material, plans, and other resources. - PMEL: Ocean Acidification
http://www.pmel.noaa.gov/co2/OA/
As part of an international science symposium series, a variety of resources are available, including research priorities reports, special issues, the text of articles on the subject, a summary for policymakers, the text of the Monaco Declaration in PDF format, symposia abstract books and presentations, fact sheets, and other educational materials. - The Ocean in a High CO2 World
http://www.ocean-acidification.net/