Niagara Falls in 1969 with no water. The water was diverted so that engineers could strengthen areas & slow erosion. http://t.co/5cOZ3CLWRl—
The World (@World) September 28, 2015
Niagara Falls in 1969 with no water
24 Nov 2015 Leave a comment
in environmental economics, resource economics Tags: Niagara Falls
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