Dr. Tamsin Ellis is a GP who looks for ways to improve her patients' health and the environment. Welcoming us into her consulting room to meet her patients, Tamsin describes her journey to climate activism, and why she's convinced that looking for 'double wins' is the way forward. From giving a lecture about the environment to a sea of faces all sipping coffee from plastic cups, to the challenges of winning over already hard-pressed colleagues, in this witty talk Tamsin describes the realities of climate activism on the NHS frontline. As she prescribes health interventions with positive side-effects for the planet, she offers a new way to talk about climate change. Tamsin is introduced by host Olly Mann. Producer: Giles Edwards