Scientists have found an abrupt change about 6,000 years ago in how terrestrial plant and animal species coexisted, right about the time human populations were ballooning and agriculture was spreading around the world. The findings suggest that human activity had reached a tipping point where hunting and farming were impacting the natural world in irreversible ways — changes that have continued to increase to this day. The researchers, including UC Berkeley’s Cindy Looy, an assistant professor … [Read more...] about Humans began altering natural world 6,000 years ago
Posted by Robert Sanders