9781422274057

Maciej Bledowski | Dreamstime.com

WORDS TO UNDERSTAND alternative energy— energy that is generally thought to be better for the environment because it is derived from sources that don’t utilize nuclear power or fossil fuels. climate change— a change in the patterns of the earth’s climate due to high levels of carbon dioxide in the atmosphere that became evident in the mid 20th century. environmental movement— a social, scientific, and political movement focused on conservation of the earth and its resources. DDT— a pesticide derived from a synthetic compound that is incredibly harmful to the environment and to human health. Industrial Revolution— a period of time within human history that brought about the use of new manufacturing processes, generally believed to have lasted from 1760 to sometime around 1840.

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