Earth Day Historical Events

What event inspired Senator Gaylord Nelson to propose the first Earth Day?

What was one of the significant outcomes of the first Earth Day in 1970?

• The creation of the United States Environmental Protection Agency

• The signing of the Paris Agreement

• The Great Global CleanUp

• The United Nations Earth Summit

By what year had Earth Day become a global event, mobilizing 200 million people in 141 countries?

(a)  

• 1990
• 1970

• 2000

• 2010

What was the cost-benefit ratio of the Clean Air Act in its first 20 years?

• 30 to one

• 10 to one

• 20 to one

• 5 to one

What significant event took place on the 50th anniversary of Earth Day in 2020?