Pollution-busting plants tackle diesel emissions on roads
An experimental green wall of ivy planted along a busy Birmingham road appears to be helping to reduce pollution.
The screen, funded by local businesses, was the idea of landscape architect Chris Rance who was looking for ways of making the city centre greener.
Scientists at Staffordshire University have discovered that tiny pollution particles are being trapped on the surface of the leaves. They're now working to discover how much pollution is being removed from the air and whether it's permanently locked away.