TED-Ed: How one scientist took on the chemical industry

Rachel Carson's investigation into DDT began with a letter about songbirds dying. Her book, Silent Spring, highlighted the dangers of pesticides like DDT, sparking controversy and leading to environmental reforms. Carson's career started in marine biology, and her writing skills helped her communicate complex scientific ideas to the public. Despite facing criticism, her work led to increased awareness of environmental issues and the eventual creation of the EPA.

What event prompted Rachel Carson to start investigating DDT?

• A personal experience with pesticide exposure

• A scientific conference on pesticides

• A government report on chemical safety

• A letter about dying songbirds

What was one of Rachel Carson's early roles at the Bureau of Fisheries?

• Conducting field research on marine life

• Writing for a radio program on marine biology

• Managing fisheries resources

• Developing new fishing techniques

How did DDT's use change after World War II?

• It was sprayed widely to control pests

• It was used only in agriculture

• It was restricted to military use

• It was banned worldwide

What was a major concern Carson raised about DDT?

• It dissolves quickly in water

• It could alter genetic structures

• It is harmless to humans

• It is ineffective against insects

What was a common criticism of Silent Spring?

• It was not based on scientific research

• It supported the use of more chemicals

• It ignored the benefits of DDT

• It was too technical for the public

What significant environmental action was influenced by Carson's work?

• The introduction of organic farming

• The creation of the National Park Service

• The establishment of the Environmental Protection Agency

• The ban on all chemical pesticides

What was Rachel Carson's challenge to the prevailing belief about nature?

• Humans should exploit nature for resources

• Nature should be left completely untouched

• Humans should master themselves, not nature

• Humans should control nature