Northwest mussel shells show a shift towards fossil-fuel based carbon. | Cathy Pfister’s “wow” moment came when she and colleague Tim Wootton were studying the chemistry and sea life of Washington’s Tatoosh Island and found a decrease in pH over an 8-year-period that was an order of magnitude greater than what they expected. It was a troubling trend—given the problems that sea life can run into as a result of ocean acidification, a change in ocean chemistry accelerated by fossil fuel pollution....
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