What is climate litigation? How is it used to hold governments to account? What is the role of legal justice in trying to achieve climate justice? Marta Schaaf, director of the program on climate, economic and social justice and corporate accountability at Amnesty International, and Iain Byrne, international human rights lawyer at Amnesty, join Gavin and Jessamy to discuss using the law to achieve climate justice and their hopes for COP27.Read: The 2022 report of the Lancet Countdown on health and climate change: health at the mercy of fossil fuelsSee: Our climate infographic