Roadside Pollution as India Joins List Of Biggest Historical Contributors To Global Warming [Getty Images]

Traffic moves along a road shrouded in haze in New Delhi, India, on Monday, Jan. 20, 2014. India, China and Brazil, three of the largest developing nations, joined the U.S. in a list of the biggest historical contributors to global warming, according to a study by researchers in Canada. Photographer: Kuni Takahashi/Bloomberg via Getty Images

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