Eco-running
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Eco-running is the variation of recreational running in which the participant collects the litter that is found along the path travelled. The founder of Eco-Running is Samuel Huber of Milwaukee, Wisconsin in the United States.{{Cite web |url=http://www.ecologyrunner.com |title=Motivation! Where Are You? |publisher=Samuel Huber |access-date=24 December 2015}}