You can't solve climate change with one idea, but what about 39? Tom Heap presents five more carbon-busting ideas from the Swiss Alps to the bottom of a South African coalmine. He's joined by the climate scientist, Tamsin Edwards to crunch the numbers and decide which will make a real difference to the future of our planet.

Producer: Alasdair Cross
Researcher: Sarah Goodman

Produced in association with the Royal Geographical Society Show less