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Recycling light

CAMBRIDGE, Mass. — Humanity started recycling relatively early in its evolution: there are proofs that trash recycling was taking place as early as in the 500 BC. What about light recycling? Consider light bulbs: more than one hundred and thirty years ago Thomas Edison patented the first commercially viable incandescent light bulb, so that “none but the extravagant” would ever …

vegan

Federal report: Vegan diet best for planet

A federal panel that helps set federal dietary guidelines is recommending Americans eat less meat because it’s better for the environment, sparking outrage from industry groups representing the nation’s purveyors of beef, pork and poultry. The Dietary Guidelines Advisory Committee, a federally appointed panel of nutritionists created in 1983, decided for the first time this year to factor in environmental …

TV_ROOM_DARK

Light at night can have serious effects

It’s incredibly hard to sleep when light seeps through your curtains or your phone glows from the bedside table. But more and more research is finding that artificial light may be more than annoying. It can be very unhealthy too. The natural 24-hour cycle of daylight and darkness keeps our circadian biological rhythms in alignment. When those rhythms get out of whack, studies have …