A year on from the disaster at Fukushima, what's the future for nuclear power?
A major new report highlights the green, amber and red areas of environmental policy.
Hanging out with millions of bananas to learn about the resilience of our food supplies.
The race between pet collectors and conservationists when a new species is discovered.
Mike Williams talks to Sir David Attenborough about his life and work in the natural world
Rural poor snub Mexican new town and Calcutta goes blue - what makes a liveable city?
Climbing the mountain glaciers of Uganda, plus living without electricity
Millions of young people worldwide are unemployed - are we creating a lost generation?
Global pressure on rare metal supplies, plus smarter lizards through climate change.
Fuel protests in Africa, glaciers on the Equator and birdsong in an office.