Enormous potential exists in the United States for geothermal direct use and geothermal heat pumps to make a significant contribution to our national energy needs while offsetting the use of fossil fuels. Geothermal projects reduce gaseous emissions and acid rain from the combustion of fossil fuels that impact our environment. Geothermal direct use has practically zero emission of greenhouse-type gases and essentially no thermal pollution. Contents: 1.0 Introduction * 2.0 Geothermal Heat Pumps * 3.0 Geothermal Energy For Buildings (Other Than By Heat Pumps) * 4.0 Geothermal Energy For Industry * 5.0 Conclusions * 6.0 References. Case studies: Auburn, New York Schools Heating System; Commonwealth Building Portland, Oregon; Klamath Falls Geothermal District; Mason Greenhouses; Residential Geothermal Heat Pumps; Elko Heat Company; Enhanced Gold Processing; Flint Greenhouses; Hotel; MILGRO; Pacific Aquafarms; Rocky Mountain White Tilapia; San Bernardino Geothermal District Heating System.