Bill Gates, the tech billionaire turned philanthropist, invests huge amounts of money in the climate crisis - and he’s pretty optimistic about how we can avoid the worst impacts.
But why? Graihagh Jackson, from The Climate Question, helps unpack some potential solutions.
We also hear from Nissa Bek, a climate activist and the founder of Project Mulan in Libya, about ways to get involved - from art to architecture.
Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Alex Rhodes with Graihagh Jackson Producer: Mora Morrison Editor: Verity Wilde