Synopsis
Dr Helen Czerski examines the hottest natural phenomenon on the planet - lightning. High-speed cameras show the secrets of upward lightning that's triggered by urban landscapes.
Further Information
Similar broadcast resources
S1E1: Arctic | Ray Mears' World of Survival
Survival expert Ray Mears travels to the most inhospitable places on earth and discovers how indigenous people have survived. He takes on the Canadian Arctic and learns survival techniques from the Inuit.
Migration | Y Byd ar Bedwar
We investigate the plan to send asylum seekers to Rwanda.