CHALLENGE
Lower respiratory infections from cooking smoke are a major cause of mortality in the developing world, resulting in around 600,000 deaths a year in India alone. While several solutions exist for the urban poor or those who are otherwise connected to the power grid, the one effective smoke-reducing stove that does exist has only been disseminated to 5% of rural India, despite being in use since the 1980s.
via http://web.mit.edu.
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