The oceans are becoming more acidic | Suzuki Elders | David Suzuki Foundation

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Ocean surface acidification (pH units). Higher levels of acidification occur in subpolar waters due to a higher rate absorption of atmospheric CO2. The lower diagram indicates the range of oceanic pH levels over the last 24 million years. Graph constructed by Pacific Science Association Task Force on Ocean Acidification.

May 5, 2010
http://www.davidsuzuki.org/blogs/suzuki-elders/2010/05/the-oceans-are-becoming-more-acidic/