The point of the precautionary principle is we don't know the mechanism. And that's the correct approach -- because our understanding of human health, the environment, and the ecosystem is still in its infancy.
That's why we do testing in most areas. That's the point of the FDA -- EVERY new drug must be presumed unsafe and tested. Such an attitude would serve us well if it were applied to widespread environmental concerns. Otherwise it'll be self-interested corporations with a damning track record (e.g. DuPont) making the calls[1].
That's why we do testing in most areas. That's the point of the FDA -- EVERY new drug must be presumed unsafe and tested. Such an attitude would serve us well if it were applied to widespread environmental concerns. Otherwise it'll be self-interested corporations with a damning track record (e.g. DuPont) making the calls[1].
1 - https://en.wikipedia.org/wiki/DuPont_(1802%E2%80%932017)#Con...