Geothermal power plants have relatively little environmental impact—they burn no fuel to create electricity. These plants do create small amounts of carbon dioxide and sulfur compounds, but geothermal emissions are far smaller than those created by fossil fuel power plants.
Pros and cons of geothermal as an energy source
|Minimal environmental impact|
|Low cost after the initial investment|
|Geothermal fields found in few areas around the world|
|Expensive start-up costs|
|Wells could eventually be depleted|