The story of what the fossil fuel industry knew about climate change more than four decades ago.Scientists who worked for the biggest oil company in the world, Exxon, reveal the warnings they sounded in the 1970s and early 1980s about how fossil fuels would cause climate change – with potentially catastrophic effects. Drawing on thousands of newly discovered documents, the film goes on to chart in revelatory and forensic detail how the oil industry went on to mount a campaign to sow doubt about the science of climate change, the consequences of which we are living through today.2022 is set to be a year of unprecedented climate chaos across the planet. As the world's leading climate scientists on the Intergovernmental Panel on Climate Change issue new warnings about climate change and the soaring cost of fuel highlights the world's ongoing dependence on fossil fuels, this series details exactly how we got here.