Monday, March 5, 2012

Ocean Acidification Rate May Be Unprecedented, Study Says

This might be more serious problem than the global warming. What can we do about it in next few decades?
"the Paleocene-Eocene Thermal Maximum, or PETM, some 56 million years ago, ... more than 5 to 10 percent of species ... (went extinct in) ... over less than 20,000 years," 
"During this time, ... ocean pH ... may have fallen as much as 0.45 units" 
"In the last hundred years, atmospheric CO2 has risen about 30 percent, ... (and) ... ocean pH has fallen by 0.1 unit." 
"pH may fall another 0.3 units by the end of the century" 
"the larvae of bay scallops and hard clams grow best at pre-industrial pH levels, while their shells corrode at the levels projected for 2100."  
"The decisions we make over the next few decades could have significant implications on a geologic timescale."
Audio:


Link:
http://www.sciencedaily.com/releases/2012/03/120301143735.htm

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