Washington Post live: 'The cheapest energy is the energy you don't use' - Dr Katharine Hayhoe

Dr Katharine Hayhoe (pictured) was one of several speakers appearing on a Washington Post Live webinar: "This is Climate: women leading the charge". Even the host was surprised by just how light-hearted the conversation was and to hear how the guests laughed and joked their way through what was a serious conversation; a conversation that even embraced existential threats.