Remember when CO2 was blamed for a poor salmon run on the Fraser river? Never mind

August 2009: Millions of salmon disappear from Canadian river | Reuters

Several theories have been put forward to try to explain the sockeye's disappearance:

* Climate change may have reduced food supply for salmon in the ocean.

August 2010: With biggest salmon run in nearly a century, hope returns to the Fraser - The Globe and Mail

Federal Fisheries Minister Gail Shea has been in B.C. this week and said the excitement she’s seen in fishing communities is palpable. “Everybody is abuzz about the great return of the Fraser sockeye,” she said in an interview on Tuesday.

Earlier in the day, the Pacific Salmon Commission revised its estimates, predicting 25 million sockeye are bound for the Fraser River this summer. That is more than double the early summer forecast, making it the best run since 1913.