|
Archaeological evidence shows that the first human use of geothermal resources in North America occured more than 10,000
years ago with the settlement of Paleo-Indians at hot springs. The springs served as a source of warmth and cleansing, their
minerals as a source of healing. While people still soak in shallow pools heated by the earth, engineers are developing technologies
that will allow us to probe more than 10 miles below the Earth's surface in search of geothermal energy
|
