So should we ban or restrict synthetic chemicals until we have a full understanding of their effects? This attractively simple idea is a lot more complicated than it appears. If pesticides were banned, agricultural yields would decline, fruits and vegetables would get more expensive and people would buy and eat fewer of them. But cancer scientists believe that fruits and vegetables can reduce the risk of cancer if we eat enough of them, which most people do not do even now. And so banning pesticides in order to reduce exposure to carcinogens could potentially result in more people getting cancer.

Autore: Daniel Gardner