Bringing light to the poor, one liter at a time

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.

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This entry was posted in Entrepreneurship, Environment, Innovation, Sustainability. Bookmark the permalink.

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