30 abril 2015
More than 1,000 dams have been removed across the United States because of safety concerns, sediment buildup, inefficiency or having otherwise outlived usefulness. A paper finds that rivers are resilient and respond relatively quickly after a dam is removed.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/TckW00J1gnI/150430145120.htm
