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Simpler, cheaper, biodegradable plastic without using fossil fuels
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In recent years, polylactic acid (PLA) has attracted attention as a replacement for petroleum-based plastics. It is made from corn-starch, or other starch-rich substances like maize, sugar or wheat, and is biodegradable – reverting in less than 60 days in ideal conditions. PLA is already used as a material for compost bags, food [...]
How the Food Makers Captured Our Brains
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As head of the Food and Drug Administration, Dr. David A. Kessler served two presidents and battled Congress and Big Tobacco. But the Harvard-educated pediatrician discovered he was helpless against the forces of a chocolate chip cookie.
In an experiment of one, Dr. Kessler tested his willpower by buying two gooey chocolate chip cookies [...]
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