"[Describes] the different forms of geothermal energy, how people are harnessing and using this rich supply, and how it could be an important part of our energy future."--Provided by publisher.

What is energy? -- What is geothermal energy? -- Geothermal energy is hot! -- Geothermal energy is cool! -- How we harvest the power -- Pros and cons -- Geothermal energy under the sea -- The geothermal country -- The power of the geysers -- Keeping it cool in Toronto -- Geothermal limits -- The challenges ahead -- Power up!