Although tempting to conclude that human activities thus benefit as well as
deplete global biodiversity, the authors stress that extinct wild species can not simply be replaced with newly evolved ones, and that nature conservation remains just as urgent.
Runoff from chemical inputs and CAFO waste pollutes our water and contributes to
global warming; monoculture — planting a single crop over a large area year after year —
depletes soil and reduces
biodiversity; overuse of antibiotics in meat production threatens our ability to fight human disease.