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Investigate the health effects caused by automobiles. In U.S. alone, there are 74 million cars on the road.
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To investigate the heath effects caused by automobiles. Just in the U.S., there are 74 million cars on the road.
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It was a book published by Rachel Carson. The book talks about the amount of DDT found in human tissue had tripled. It also talks about all the chemicals in the stuff we use.
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83 million Americans own personal automobiles. From all the cars the pollution kept getting worse because all of it coming off the cars
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Sets the first federal automobile emission standards.
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This is when people was trying to say the pollution got worse because of the population. There were 3.5 billion people. People was trying to say that the pollution keeps increasing when more people come along.
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He published a book, which list a variety of products helpful for self- sustainable living.
