Downloads for Geothermal
Geothermal energy is the heat from the Earth. This heat can come from molten rock (“magma”) deep inside the earth, or very hot rock and ground water a few miles below the Earth’s surface, and can be used for direct heating or to produce electricity through a steam turbine.
San Francisco is habitat for 800,000 people – meeting needs for space to work, play, and learn; for food, water, and air; for community with local flora and fauna. SF Environment provides support for urban agriculture and forestry and green buildings, helping residents and businesses harness environmental opportunities.