|Produce inexpensive electricity||Disrupt natural river flow|
|Reservoirs used for flood control, irrigation, drinking water, and recreation||Slow down river flow that can kill fish and other animals that depend on a steady flow|
|Renewable energy source||Alter water quality|
|Increases reliability of energy sources||Significant obstacle to fish and other animals|
|Improves air we breath||Can impede the natural flow of sediments|
|Fights climate change||Expensive to build|
|Small hydro plants using local rivers can be practical for some communities||Flooding large areas of land|
|–||Disruption or destruction of habitats|
|–||Displacement of Aboriginal and other communities|
|Energy production does not produce greenhouse gases||Old designs emit noise|
|Does not contribute to global warming||Some people do not like the visual impact created|
|Farming and grazing can continue on land where wind turbine is located||Wind does not always blow or remain constant|
|Renewable resource||Barriers to bird movement|
|Inexhaustible||Cause fatal bird collisions|
|Produces fuel source that can never be depleted||–|
|No air pollution||–|
|No water needed||–|
|No need to tear up the ground or destroy habitats||–|
|Small environmental footprint||–|
|New designs emit minimal noise||–|
|One wind turbine can supply a large area with energy|
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