Drama: Smoking Guns Radio 4, 2.15pm

Shaun Evans (right) plays Dr Ben Santer, the scientist who proved that mankind is responsible for climate change. The story focuses on the aftermath of his report, which saw various powerful groups attempt to discredit him and his research.

In Tax Me, I’m A Millionaire (Radio 4, 8pm) Abigail Disney, grand-niece of Walt, discusses her efforts to reform the US tax system so that the wealthy contribute more to society.

Parish Is Burning (Radio 4, 11.30pm) is a new one-off sketch show featuring the talents of rising Irish comedy stars. Among those featured are Michael Fry, Mary Flanigan and Ciara Knight.