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Washington D.C., USA-January 21, 2013: These people hold a protest sign on Pennsylvania Avenue in Washington D.C. during the inaugural parade of president Barack Obama. They are protesting the construction of the KXL Pipeline or Keystone Pipeline from Alberta Canada to industrial cities in the USA due to environmental issues.
Photo of protesters at the inaugural parade of Barack Obama on Pennsylvania Avenue in Washington D.C. The Keystone or KXL Pipeline is a hot environmental topic right now. This pipeline would ship oil refined from the oil tar sands of Canada to industrial cities of the United States. Environmental damage is a concern.