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POPSRenewable Energy From The Earth's Core Geothermal energy is heat from within the earth. We can use the steam and hot water produced inside the earth to heat buildings or generate electricity. Geothermal energy is a renewable energy source because the water is replenished by rainfall and the heat is continuously produced inside the earth.
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POPSAdvantages And Disadvantages of Geothermal Energy Geothermal energy is derived from beneath the earth's surface. There are a variety of different thermal resources, each of which creates its own engineering challenge as to the way that the energy can be tapped. In some cases current technologies are not practical or economic for successfully extracting the thermal energy. To all intents and purposes geothermal energies are renewable because the latent quantities of energy are so large we cannot imagine them running out.
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POPSCould "The Day After Tomorrow" Really Happen? Will global warming really cause disaster to strike Earth in the manner depicted in the movie graphic of storm "The Day After Tomorrow"? Could we have killer tornados attacking in roving gangs, murderous ice balls the size of sour grapefruits falling from the sky, waves of cold air that descend in minutes to freeze the doodads off metal statues and any nearby humans? Well, we'll answer that in a minute, but first, some humor!
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