These concerns are based on the work of respected scientists who believe increased CO2 will dangerously increase acidification. (climatechangefacts.info)
More recently we were told that increasing acidification due to global warming was a serious problem. (drtimball.com)
Marine biologists continue to report increasing acidification of seawater due to the ocean uptake of increasing amounts of carbon dioxide chiefly produced by burning fossil fuels. (judithcurry.com)