An essential how-to on powering your home with sun, wind, water, and more. For readers wanting to save money-and the planet-by using alternative energy, this bo

The environmental movement and rising awareness of global warming have sparked an interest in green living. People want to know what they can do to live sustain

Explains how the government works and the functions of its many parts, covering such topics as the system of checks and balances, the Constitution, and the divi

Discusses the three main global threats--decline in biodiversity, the thinning of the ozone layer, and global warming--and offers ways to reduce, reuse, and rec

Explains how to track weather patterns, read weather maps, and identify cloud formations while exploring the effects of pollution, hurricanes, and El Niäno.