There may not be much for dinner soon, even in wealthy countries. fish are dying off due to “dead zones” caused by global warming.
As global warming makes the oceans warmer, oxygen-deprived regions are getting bigger. They are caused when microscopic algae accumulate rapidly in dense concentrations, usually due to run off from fertilizer? These areas are known as “red tides” or “dead zones” because fish can’t survive there.
Researchers at Scripps Institution of Oceanography at UC San Diego say these phenomena remain unpredictable in not only where they appear, but how long they persist. While not all of them are harmful, some blooms carry toxins that have been known to threaten marine ecosystems and kill not only fish, but marine mammals and birds.