Main content
Why millions listen to this girl's advice
How a nine-year-old girl is helping to keep people safe at a London station. Dougal Shaw reports.
Duration:
This clip is from
More clips from People Fixing the World
-
![]()
Three surprising things you can make with mushrooms
Duration: 04:27
-
![]()
Forests the size of tennis courts
Duration: 03:01
-
![]()
The vehicle that got a village smiling
Duration: 04:30
-
![]()
Microplastics, drugs and food - how jellyfish can help us
Duration: 04:50
