As all grocery shoppers know, many meats, breads, cheeses, cakes and cookies come wrapped in plastic to prevent spoilage. But plastic films are not great at keeping foods fresh, and some plastics can leach harmful compounds into the food they’re supposed to protect.
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Scientists at Harvard have developed a technology that mimics the way leaves produce energy from sunlight, water and air. A device about the size of a credit card, the “bionic leaf” includes a solar panel. When placed in water, it uses energy from sunlight to split the water into hydrogen and oxygen.
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Harvard scientists have identified a new class of high-performing organic molecules, inspired by vitamin B2, that can safely store electricity from intermittent energy sources like solar and wind power in large batteries.
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From U.S. News and World Report’s 2014 ranking of the top business schools, we selected three U.S. based schools and two international schools where some of the social investing leaders of the future will learn their craft.
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