How human sewage is being recycled to recover a valuable chemical Read more
The treasure in our toilets
How human sewage is being recycled to recover a valuable chemical
Regrowing the rainforest
It has taken 40 years, but this man has regrown a patch of rainforest in the Amazon
The big transport swap
Would robot shuttles, buses on demand and free rides persuade you to ditch your car?
Making the world a quieter place
How sound barriers and noise sensors are helping to make the planet more peaceful
The farmers moving their fields indoors
We visit farmers growing lettuce, herbs and strawberries indoors in the middle of cities
The great spreadsheet in the sky
How blockchain could solve some of the world’s problems.
A Sporting Chance
How sport can change the lives of young people from some of the toughest backgrounds.
The breath of life
A clever way to provide life-saving oxygen
Electricity that grows on trees
Scientists are trying to tap unlikely-sounding energy sources - like the leaves on trees.