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Hydroelectric power

Hydroelectric power is the use of moving water to producing electricity. (Graham, 1998, p24) It is true that hydroelectric power as a renewable resource, like many alternative energy sources could reduce CO2 emissions.

However hydroelectric power plants causes some animal species to be endangered such as The Chinese river dolphin which is geographically unique to the Yangtze River. (Shen, 2000). One possible solution to maintain river species is to build a separate channel next to the dam so that fish and other animals can travel the river.

Unfortunately fish might not recognize such a system, which could lead to extra unnecessary spending for no benefit. 

On the hand water species in Scotland have increased since the implementation of smaller versions of the separate canal (REF).  So construction companies who are building or repairing major dams should design similar models.  Such action could mean that dams still produce a high level of power , but with reduced damage to the river.