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A large public transportation network, in concert with other sustainability efforts, could reduce our carbon footprint by 24 percent, significantly reduce our oil consumption, save us money, reduce our travel time and its associated stress, and improve our overall health. Pictured is a Washington, D.C., Metro station. Photo: Getty Images/iStockphoto -
An October 2012 report by Pesticide Action Network North America examined dozens of recent studies and concluded that the influx of pesticides in our society -- omnipresent in the air we breathe and the foods we eat -- is taking a heavy toll on our children's health and intelligence. Photo: Getty Images
© 2013 Hearst Communications Inc.
© 2013 Hearst Communications Inc.
