The State of Nature

A detailed snapshot of Earth's natural life is published this week. How sick is the planet and what can we do to reverse the damage? Tom Heap hosts a debate. on the vital findings of the Intergovernmental Platform on Biodiversity and Ecosystem Services. Tom is joined by Sir Robert Watson, Chair of the IBPES, by the writer and broadcaster Gaia Vince and by Erica McAlister, insect specialist at the Natural History Museum. Producer: Alasdair Cross