"Pacific oysters in the wild on Washington's coast haven't reproduced in six seasons. Scientists suspect ocean-chemistry changes linked to the fossil-fuel emissions that cause global warming are helping kill these juvenile shellfish. The oceans are becoming more acidic, and that corrosive water is finding its way into Puget Sound."
Puget Sound: "Acidification Threatens Wide Swath of Sea Life"
Source: Seattle Times, 08/02/2010