An environmental history special - a podcast by BBC World Service

A pioneer of climate change science, UK's Windscale nuclear accident, Kenya's Green Belt heroine who won the Nobel Peace Prize, the man "who fed the world", and banning cars in Mexico City.

(Photo: Thick black smoke blowing out of an industrial chimney. Credit: John Giles/PA)

Further episodes of The History Hour

Further podcasts by BBC World Service

Website of BBC World Service