Pacific Coast Dead Zone, 2006 and 2007. PISCO; NOAA-NWFSC; OSU / COAS via globalchange.gov

Climate change affects coastal currents that moderate ocean temperatures and the productivity of ecosystems. As such, it is believed to be a factor in the low-oxygen “dead zone” that has appeared along the coast of Washington and Oregon in recent years. In the maps above, blue indicates low-oxygen areas and purple shows areas that are the most severely oxygen depleted.

Global Climate Change Impacts in the United States [pdf]