‘Unless “climate change” becomes a non-issue…there may be no moment when we can declare victory’. We reveal the communications plans drawn up by energy groups to make us doubt climate change. From targeting ‘older, lesser educated males from larger households’ to making sure that those promoting action on climate change ‘appear to be out of touch with reality’; their ambitions were high, their tactics down and dirty. From climate change to smoking and cancer, this is the story of how doubt has been manufactured. This 10 part series explores how powerful interests and sharp PR managers engineered doubt about the connection between smoking and cancer and how similar tactics were later used by some to make us doubt climate change. With the help of once-secret internal memos, we take you behind boardroom doors where such strategies were drawn up and explore how the narrative changed on one of the most important stories of our time - and how the marketing of doubt has undermined our willingness to believe almost everything. Presenter: Peter Pomerantsev Producer: Phoebe Keane