Old mine shafts suggested as energy option

Alternative methods of energy are more crucial than ever, and one geothermal answer might be in good supply here in the Upper Peninsula.

Excerpt: “Mineshaft geothermal” is gaining attention here as researchers investigate the energy potential stored hundreds of feet below the ground. The water in these abandoned and flooded mines, which expand throughout the U.P., is just now starting to be used to heat and cool buildings.

More on the story is online here.

Source: Midwest Energy News