How long have humans been changing the Earth?

There have been many debates in modern times about how humans are changing our planet. However, humans have actually probably been affecting the Earth for a very long time. Life has always changed its environment and humans, as living organisms, are no exception. In this month's podcast episode, professor Sean Carroll interviews Kyle Harper about the ancient impact of our species on the Earth.

For this meetup, we each listen to the linked science podcast before the event, then get together to talk about it. Kind of like a book club for podcasts!

Link to the episode: https://www.youtube.com/watch?v=NIAtwW3exUQ