In article , Doctor Artaud
writes:

Supposedly Jacques Cousteau believed in annihilating the world's
population to save the natural beauty of the planet and to remove man's
meddling influence.

- Did a search, niot one quote..

You must be mistaken;
for if he did that
- Where on earth would he get his Air fills ?
Where buy new equipment..
Where would he fefuel & resupply his research ship?

Probably a misquote when he saw coastline beauty of decades past
replaced by Tacky condo's & Timeshares...

& watched the transparant sea turn murky & dangerous with pollution..