Using human hair to fight oil spills
Usually our hair is thrown away after it's cut. But a hairdresser in Wales has been using her customers' hair to make special mats, which are used to help the planet.
For more innovative solutions listen to the People Fixing the World podcast
Video by Richard Kenny and Daniel Gordon
This video has been optimised for mobile viewing on the BBC News app. The BBC News app is available from the Apple App Store for iPhone and Google Play Store for Android.