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We can spend years debating what the temperature was on July 18, 972, but what we ought to know is that our putting CO2 into the atmosphere is destroying the world’s oceans regardless of the temperature. The new science shows that the CO2 that we put in the atmosphere is acidifying the oceans. The oceans have 23 percent more hydrogen ions that create acidic conditions than any time ever that we know of in human history, at least.
Jay Inslee, Energy and Commerce hearing, july 2006.