In an interview recorded in 2021, Stephen Sackur speaks to one of the past century's most influential environmentalists, James Lovelock. He introduced us to the Gaia hypothesis – the idea that our planet and all the life on it are part of one dynamic, self-regulating system. At the age of 101, Lovelock still had big thoughts about the future of life on Earth. Have we humans sown the seeds of our own destruction?

Audio for this episode updated on Monday 1st August 2022.