CONTENTS CHAPTER ONE Effecting Change 4 CHAPTER TWO Becoming a Scientist 12 CHAPTER THREE Silent Spring 20 CHAPTER FOUR Carson’s Legacy 32 Important Dates 42 Stop and Think 44 Glossary 46 Learn More 47 Index 48 About the Author 48
DOTO CORRECTED ORCHESTERDALE
5 CHAPTER ONE Pollution from cities industries and everyday people became a major concern in the early 1970s On April 29 1970 US president Richard M Nixon got a wake-up call It would change history It came in the form of a note from his advisers Their message was clear The nation was in a pollution crisis And the government was not ready to deal with it The advisers laid out details on the pollution They provided numbers as evidence Americans were EFFECTING CHANGE
