One positive impact of building a hydroelectric dam is that it can provide a renewable source of energy. By harnessing the power of flowing water, hydroelectric dams can generate electricity without emitting harmful pollutants into the environment. This can help reduce greenhouse gas emissions and combat climate change.
One negative impact of building a hydroelectric dam is that it can disrupt the natural flow of rivers and harm aquatic ecosystems. When a dam is constructed, it can block the migration of fish, alter water temperatures, and change sediment flow downstream. These disruptions can have negative consequences for fish populations, water quality, and overall ecosystem health. Additionally, the construction of a dam can also require the displacement of local communities and the flooding of valuable habitats.
Explain one positive impact of building a hydroelectric dam. Also explain one negative impact?
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