Environmental Impact

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.

Geothermal Challenges. Switch Energy Alliance, www.switchon.org


Pros and cons of geothermal as an energy source

Minimal environmental impact
Low emissions
Low cost after the initial investment
Geothermal fields found in few areas around the world
Expensive start-up costs
Wells could eventually be depleted