Add Yahoo as a preferred source to see more of our stories on Google. Regulations have cleaned up cars, power plants and factories, leaving cleaner air while economies have grown. Cavan Images/Josh ...
An office building stands out amid a hazy smog engulfing Beijing on November 25, 2009. One of the world's most polluted countries, China has increasingly stressed its commitment to changing its dirty ...
Richard E. Peltier receives funding from the US Department of Agriculture and the Rio Grande International Science Center. The results – if regulations are ultimately rolled back and if those ...
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