Emissions hydroelectric power

The disadvantages of hydroelectric power generated through large-scale dam projects are its potential impact on wildlife and agriculture downstream from the dam, the possibility that it may displace the local population, and, ironically, greenhouse gas emissions ... 

Most of the world s electricity requirements are met by burning fossil fuels, using the heat generated by nuclear reactors or hydroelectric power, all of which have environmental consequences. Fossil fuels produce carbon dioxide, which contributes to the greenhouse effect and climate change. Many fossil fuels, especially coal, contain sulfur which results in sulfur dioxide emission and acid rain (Chapter 8). 

Assuming no growth in nuclear power (or hydroelectric power, since suitable sites have already been developed), the two best alternative energy technologies are solar and wind, neither of which are sources of CO emissions. As of 2012, major efforts are underway in the United States to develop substantial solar and wind infrastructures by 2030. 

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