High-profile climate scientist Michael Mann has been embroiled in a 12-year battle against conservative commentators who claimed his data was fraudulent. Last week, he was awarded $1m in a defamation lawsuit. Michael joins Science in Action to discuss the case and the impact it may have. Also, this week, Karyn Rode from the US Geological Survey has been using cameras on collars to track polar bear movement and diet. She tells Roland how the data reveals the devastating effect of sea ice loss on the bears. Widescale blackouts in Africa, known as loadshedding, are getting worse. Chemist and winner of The Royal Society Rising Star Africa Prize 2023, Wade Peterson, has an innovative chemical solution to the problem. And using a forest to detect the most violent astrophysical sources in our universe? Physicist Steven Prohira thinks it’s possible. Presenter: Roland Pease Producer: Ella Hubber Production Coordinator: Jana Bennett-Holesworth(Image: Dr. Michael E. Mann is seen outside of the H. Carl Moultrie Courthouse on February 5, 2024 in Washington, DC. Credit: Pete Kiehart for The Washington Post via Getty Images)