Group items tagged

A grossly inefficient sewage system makes the city's tap water filthy and consigns millions to disease, will it ever improve?

Thanks largely to vehicle emissions, Mexico City was once the world's most polluted urban centre. But over the past decade, a focus on sustainable alternative transport has persuaded a growing number of citizens to leave their cars at home. 

Interactive article focusing on issues growing cities face and projects in place to tackle these issues. Excellent for background information as well as more depth for cities: Lagos (Nigeria), Mexico City, Dhaka(Bangladesh), Shenzhen (China).

Green roofs sprouting across Mexican capital not only purify the air but aid recovery of hospital patients, says environment chief. Note podcast: The global battle for clean air.