Harvard University biologist Stephen R. Palumbi, writing in a 2001 issue of Science, described how humans have created mutant bacteria, resistant to all but the most powerful antibiotics, and insects tolerant of so many different insecticides that chemical control is useless. “We are causing accelerated evolutionary changes,” he concluded. It might also be added that we are altering everything, even ourselves, without having the faintest idea of the short-term, much less the long-term, implications of our actions.

Fitzgerald, Randall. The Hundred-Year Lie: How to Protect Yourself from the Chemicals That Are Destroying Your Health (p. 167). Plume. Kindle Edition.