Ninety percent of energy used in the world today comes from fossil fuels. The problem is that fossil fuels will eventually run out and they are not clean fuels. Fossil fuels pollute the air and give off carbon dioxide which adds to global warming. People worldwide are exploring alternative energy sources such as the sun, wind, and water.
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Ninety percent of energy used in the world today comes from fossil fuels. The problem is that fossil fuels will eventually run out and they are not clean fuels. Fossil fuels pollute the air and give off carbon dioxide which adds to global warming. People worldwide are exploring alternative energy sources such as the sun, wind, and water.
Read Less
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Seller's Description:
2008. LIBRARY BINDING. A good ex-library hardcover with typical library markings, some blacked out. An occasional smudge or mark, otherwise clean pages. Minor cover wear. No dust jacket. Booksavers receives donated books and recycles them in a variety of ways. Proceeds benefit the work of Mennonite Central Committee (MCC) in the U.S. and around the world.
