Beneath the surface of the earth is an energy source, geothermal, that could provide 39 countries with all of their electricity needs. Geothermal power is generated through the piping of underground water and steam reservoirs to the surface in order to power turbines that produce electricity. This type of energy is attractive because it is a free heat source, and it is bountiful, and reliable. According to the Project Drawdown's calculations, geothermal growth from now until 2050 will result in the reduction of CO2 emissions by 16.6 gigatons (1 gigaton is equal to 1 billion tons), ranking it as the 18th best solution to slow down climate change.
Several cities and countries have discovered that geothermal energy has the potential to provide significant energy capacity in a completely sustainable way. Two stories in this collection (see below) feature Iceland, where geothermal energy heats pools that define their communities, and geothermal power plants turn CO2 into a solid to stop it from entering into the atmosphere. Another story addresses how geothermal power would be an ideal source of electricity for developing countries, in part due to its steady supply. Lastly, numerous cities around the world are making plans to reduce carbon emissions through the use of geothermal. This solution is one of the Drawdown Ecochallenge actions to reduce greenhouse gas emissions.
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