Some people use extreme diets like fasting and juice cleanses. But these aren’t necessary for most people and may be dangerous without medical supervision. Here are five foods that support the body while cleansing.
Treated human waste has been used on farmland for decades, but the ick factor has not entirely faded. Some environmentalists think the treatment process may not get rid of all the harmful contaminants that could be in the waste.
How does San Francisco’s 600 tons of compostable waste become a nutrient-rich material that improves the quality of our local wines? Watch QUEST’s Science on the SPOT story, Dark Matter: Inside the Compost Cycle to hear from agronomist Bob Shaffer, Northern California’s “compost guy,” and learn about the composting process.