Americans eat more than 624 million pounds of salmon a year, and about a third of it comes from the Pacific Ocean.
But will we (and our grandchildren) be fishing for or dishing up wild Pacific salmon in 50 years? How about 150 years? The answer depends on what we decide about climate change in the next few years.
A new study by a group of Canadian scientists, published in the journal Nature Climate Change, looks at how Pacific chinook salmon will fare as their streams become warmer in the next several decades.
On the upside, they found that young chinook showed the capacity to endure stream temperatures that were somewhat warmer than historic averages.
That means that climate change alone isn’t likely to cut off our supply of Pacific salmon steaks or sushi in the next few decades at least.
But they also found that there is just so much change that a salmon can stand: The chinook died in water temperatures above about 76 degrees Fahrenheit, which was about 7.2 degrees warmer than their natural river habitat.
Since climate change is set to warm most Pacific salmon streams of the U.S. and Canada at least that much in the next 100 to 150 years, “we need as a society to decide what is an acceptable level of risk, and come up with solutions,” said study coauthor Bryan Neff, a biologist at Western University in London, Ontario.
Takepart.com
The probability that global warming will warm salmon streams to a significant degree over the next 150 years is beyond unlikely. These streams are sourced primarily from melting ice. The temperature of these streams have not changed at all recently despite all the "global warming" activists claim happened over the recent decades. The predictions that the temperature of these streams will rise greatly due to "global warming" are just as good as the hockey stick projections from Mann and the IPCC which never occurred in nature.