Costing the Earth
Costing the Earth
Wildlife-Friendly Motorways
Up next
11 October 2016
28 minutes
Available for over a year
Motorways kill animals. That's unavoidable. But can road builders minimise the death toll with badger tunnels, bat flyovers, and green bridges covered in plants rather than tarmac? Tom Heap travels to the Gwent Levels and the Netherlands to find out.
Producer: Sarah Swadling.
