If you want a cooler home and at the same time save money while thinking about the environment, then the perfect option for you is geothermal air conditioning. Like geothermal systems, these geothermal cooling systems are basically heat pumps which draw the heat out of the home and then radiate it outside the home. The reason why a regular air condition costs much is because while the temperature outside rises and higher than the temperature inside your home, this regular air conditioner need to work harder just to radiate the inside heat outside your home. The good thing about this geothermal cooling system is that while it helps you save bunch of money with your cooling system, it is also eco friendly. This system uses heat pumps too. However, they do not try to radiate the inside heat into the hot air outside but instead, they take advantage on the fact that few feet under the ground, temperature is cooler than normal summer air and also warmer than normal winter air. As a matter of fact, the underground temperature has to only be adjusted a bit so it can be perfectly comfortable for your home. But that is also depending on where you are living.