Chasing tornados in the American mid-West
Chasing tornados in the American mid-West \u2013 scientists are trying to learn the maximum from the tornado outbreaks currently in America. Professor Karen Kosiba calls us from a radar truck studying the storms, and Professor John Allen explains the energy powering them. \n \nFrom the weather of today to the skies of 800 years ago... Dr S\xe9bastien Guillet reveals how lunar observations by medieval monks are helping untangle the connection between historic eruptions and climate. \n \nFinally, we go back even further in time to the Bronze Age with Professor Elisa Guerra-Doce \u2013 to find out what drugs our ancestors were into.
Image credit: Getty Images / Michael B. Thomas\n \nProducer: Roland Pease\u202f \nAssistant Producer: Sophie Ormiston