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Many people like these Tibetans in Qinghai, China, rely on indoor stoves for heating and cooking. That causes serious health problems.
Courtesy of One Earth Designs
March 25, 2014 Air pollution causes 1 in 8 deaths worldwide, with half of the deaths caused by fumes from home stoves. Fixing the problem isn't as simple as providing more efficient stoves. Habits must change, too.
A man harvests fruits of the Jatropha tree in Taabo, Ivory Coast. Jatropha, which is grown in many parts of the world, has fallen from favor as a diesel fuel substitute.
Kambou Sia/AFP/Getty Images
August 21, 2012 People thought the hardy Jatropha tree was the answer to the food vs. fuel debate, until it wasn't. Financial hard times and a misunderstanding revealed this biofuel to be like all the rest — in need of good food and water.
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A worker with cooking oil in a holding barrel behind an Ashton, Maryland restaurant.
TIM SLOAN/AFP/Getty Images
November 7, 2011 Grease rustling is on the rise, as thieves make off with used restaurant grease. The goo left over from deep-fat frying is prized on the biofuels market. As fuel prices go up, so does the price of recycled grease.
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