Bringing Light to the Poor, One Liter at a Time [Video]
Wednesday, July 13, 2011
A bottled liter of water with a few teaspoons of bleach is proving to be a successful recipe for dwellers in the light-deprived slums of the Philippines. The simple technology is spreading sunlight in places where it has never been, and saving residents money at the same time. Gemma Haines reports.
- business case