Question

First "Earth Day" was celebrated on ...................

• A. April 20, 1970
• B. April 22, 1970
• C. April 20, 1972
• D. April 22, 1972

Hint:

Key environmental dates:
- Earth Day: April 22 (first held in 1970).
- World Environment Day: June 5 (Stockholm Conference, 1972).
- International Day for Biological Diversity: May 22.
- World Ozone Day: September 16.

Answer 1

The Correct Option is B

Concept:
Earth Day is a globally recognized annual event observed to demonstrate civic commitment to ecological conservation, combat climate change, and demand statutory enforcement of environmental protection policies.
It marks the inception of the modern public environmental movement and the mobilization of grassroots eco-activism.

Step 1: Historical Genesis and Catalyzing Events:
In January 1969, an oil well blowout occurred off the coast of Santa Barbara, California, discharging more than three million gallons of crude oil into the Pacific Ocean.
The ensuing environmental destruction killed thousands of sea birds, dolphins, and seals, sparking outrage across the United States.
Senator Gaylord Nelson of Wisconsin resolved to harness the growing public concern by organizing an environmental "teach-in" across American university campuses.

Step 2: Mobilization and Selection of Date:
Senator Nelson recruited young activist Denis Hayes to coordinate national efforts and broaden the campaign beyond academic institutions to include labor unions, schools, and civic communities.
The organizers selected April 22, 1970, because it was a weekday falling between spring break and final college exams, thereby optimizing student attendance.
On that historic day, roughly 20 million Americans (nearly 10 percent of the total United States population at the time) took to the streets to peacefully protest industrial pollution, smog, oil spills, and toxic dumps.

Step 3: Legislative Legacy and Global Expansion:
The widespread success of the April 22, 1970 demonstration led directly to the establishment of the United States Environmental Protection Agency (US EPA) in December 1970.
It also facilitated the passage of landmark legislation including the Clean Air Act of 1970, the Clean Water Act of 1972, and the Endangered Species Act of 1973.
In 1990, Denis Hayes took the campaign global, mobilizing 200 million people across 141 nations.
Final Answer:
The first Earth Day was celebrated on April 22, 1970, which corresponds to option (B).