About 40% of the world’s population use solid fuels for cooking and lighting, putting individuals and families at risk of fire and respiratory diseases. A major concern in developing countries is the reduction of the use of solid fuels and kerosene after dark. However, many people living in make-shift homes or slums do not even have access to the sun during day-time hours as the houses are too cramped to allow for windows, until now. A team of students from MIT dreamed up a very simple and accessible way to bring sunlight into these homes using only a plastic liter bottle, water and bleach.

CLICK HERE for the above CNN report on the story

Also be sure to check out the

 “Liter of Light” project, run by Illac Diaz, which is bringing this cheap technology to the Philippines.