An excellent description of geothermal heating and cooling showing all of the benefits and detriments as well as the many different configurations of geothermal ground loop systems.
geothermal heating

Geothermal Exchange: Ground Source Heating And Cooling
(via www.neutralexistence.com)
Submitted by neutralexistence on Sun, 2008-03-09 17:58. | Tags: architecture | geoexchange | geothermal | geothermal air conditioning | geothermal heating
Hot clean power under our feet
(via www.cars-and-trees.com)
America can kick its addiction to fossil fuels by drilling more wells, says a panel of experts at the Massachusetts Institute of Technology. Not for oil, but to tap Earth’s heat.
Submitted by ovisoftblue on Fri, 2007-09-07 12:55. | Tags: technology | earth heat | geothermal | geothermal heating | geothermal power plant