The pair restarted their work in Massachusetts with about 400 brook trout reared for up to eight months in tanks. The scientists kept some of the fish in waters set at 59 degrees Fahrenheit while others at 68 degrees Fahrenheit. All were fed the same diet.
By the end of the experiment, the difference was stark. The trout raised in warmer waters were on average less than half the size as the other fish.
No one has to eat fish.
There are places in the world where without eating fish, people would starve. So actually, some people do.
Currently in a small number of places, but this is very much a solvable problem, not something inherent.
Many people are poor, rural coast dwellers