More than 30 people have been rescued, and one remains missing, after a cargo ship struck an oil tanker in the North Sea on Monday.  
  
As one ship continues to burn, Niall Paterson is joined by our science and medical correspondent Thomas Moore to look at how the crash happened.  
 
Plus, David Craven, from the Yorkshire Wildlife Trust, tells us about the environmental impact the fire, and the leaking contents of the ships, could have on the birds, seals, and whales that live off England’s east coast. 
 
Podcast producer: Natalie Ktena 
Editor: Philly Beaumont