The data analyst Hannah Ritchie challenges the doomsday climate scenarios dominating the headlines to argue for a more hopeful outlook. In Not the End of the World: How We Can Be the First Generation to Build a Sustainable Planet she uses the data to show what progress has been made, and what actions will have the most impact in the future.

Capitalism, consumerism and unfettered growth are often blamed for the climate crisis, but the Bloomberg journalist Akshat Rathi believes that capitalism is the best means we have to tackle the issues in time. In Climate Capitalism he meets the business people and politicians from around the world who are finding innovative ways to go green.

The oceanographer and Joint Director of the UK National Climate Science Partnership, Professor Michael Meredith often works in one of the most difficult and least understood areas of the planet - the Southern Ocean around the Antarctic. He believes that while individual actions and choices are important to tackle climate change, only stronger worldwide governance can slow the irreversible effects of ice sheet decline and rising sea levels.

Correction: during the live broadcast we mistakenly stated that Britain gets more than 40% of its energy from renewables, instead of 40% of its electricity.

Producer: Katy Hickman