Ancient farmers irreversibly altered Earth’s face by 3000 years ago
Mohi Kumar writes: When we think of how humans have altered the planet, greenhouse gas warming, industrial pollution, and nuclear fallout usually spring to mind. But now, a new study invites us to think much further back in time. Humans have been altering landscapes planetwide for thousands of years: since at least 1000 B.C.E., by which time people in regions across the globe had abandoned foraging in favor of continually producing crops. “This is the first project of its kind…