... at that time had no idea what the health risks were. The government said the pesticides were safe, so the people used them. It was not until Rachel Carson's book, Silent Spring, written in 1967, that people started to question the use of pesticides. Author and scientist Theo Colborn questions why the effects of these toxins were not discovered earlier. In her ... chemicals that cause the problems. Most of them take a very long time to degrade. Another reason is just the sheer number and distribution of the molecules. Since Rachel Carson's book, Silent Spring, the government has created ...

• Word Count: 2382
• Approx Pages: 10
• Has Bibliography
• Grade Level: High School