The ocean covers over 70% of the Earth’s surface and can hold more than 150 times the amount of carbon dioxide as air. Around a quarter of CO2 emissions created by human activity each year is absorbed by them. From phytoplankton to whales to seagrass meadows, we explore how this happens. And in climate news, we hear about the wildfires and drought affecting Chile. Hosts Jordan Dunbar and Kate Lamble speak with: Rita Steyn, Contributing Editor at The Marine Diaries and lecturer at University of Tampa, Florida Michael Yap is a Marine Biologist and Founder of Seagrass Guardians, Malaysia Dr. Haimanti Biswas, Principal Scientist of Biological Oceanography at CSIR-National Institute of Oceanography, India Dr. Annette Scheffer, Marine Biologist and Lecturer, speaking with us from Antarctica John Kirkwood, Marine Biologist and Expedition Leader speaking with us from Antarctica Alex Godoy Faundez, Director of the Sustainability Research Centre, Universidad of Desarrollo in Chile This programme was first broadcast in May 2022 Researcher: Immie Rhodes Reporter: Mark Stratton Producers: Dearbhail Starr and Sophie Eastaugh Series Producer: Alex Lewis Editor: Richard Fenton-Smith Sound Engineer: Tom Brignell and Neil Churchill Production coordinator: Siobhan Reed