Challenge has finished
Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms Visual pollution,is the presence of overhead power lines, motorway billboards, scarred landforms (as from strip mining), open storage of trash or municipal solid waste.
Monday, 29th June, 2009 (GMT)
Monday, 6th July, 2009 – Sunday, 12th July, 2009 (GMT)
Monday, 13th July, 2009 – Sunday, 19th July, 2009 (GMT)
Capture date rules:
Maximum number of entries per user:
Maximum number of entries in challenge:
On the campus of the University of Minnesota.
|Submitted:||Thursday, 9th July, 2009 09:02 (GMT)|
|Taken:||Monday, 6th March, 2006|
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