Delhi's rickshaw pullers say they don't contribute to air pollution, but are still the worst affected.Read more
BBC News, Delhi
Nairobi generates thousands of tonnes of rubbish every day - much of it ending up littering the streets or in landfill. But now a project called 'Community Cookers' is helping schools and hospitals to set up ovens powered with this rubbish. Alan Kasujja went to Mirema School in Nairobi to see one in action. (Photo: women cooking on a 'community cooker' powered by rubbish. Credit: BBC)
How environmental campaigners battled to stop the Khian Sea from dumping America's hazardous waste in Haiti
Video shows the moment deadly flash floods swamped the ancient city of Petra in Jordan.