@helenfrances Back in the 50-60,s she was a Marine Biologist she studied and wrote about the effects on animals in the ocean and the food change. It's a interesting read

@helenfrances I think Rachel Carson was ahead of her time. You can read more about her on her website:
https://www.rachelcarson.org/
To quote:
"Rachel Louise Carson was an American marine biologist, author, and conservationist whose book Silent Spring and other writings are credited with advancing the global environmental movement."
JK