The St. Patrick's Day River

17 March 2008 - 2:00pm

As part of its yearly tradition, officials in Chicago have dyed the Chicago River green to celebrate St. Patrick's Day.

This time-lapse video from the Chicago Tribune shows the dying process that leads to a green river running through downtown Chicago.

Source: The Chicago Tribune, March 17, 2008
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The interdisciplinary nature of these challenges justifies a more decisive federal policy that helps metropolitan areas promote energy and location-efficient development.