Earth Day is an annual event on April 22 to demonstrate support for environmental protection. First held on April 22, 1970, it now includes a wide range of events coordinated globally through earthday.org including 1 billion people in more than 193 countries.
World Earth Day is celebrated annually on April 22 to raise awareness about environmental issues—such as pollution, deforestation, and climate change—and to mobilize global action for environmental protection. Launched in 1970 following a major oil spill, it is now the largest civic-focused day of action worldwide, with over 1 billion people in 192 countries participating in activities like tree planting and policy advocacy.
April 22 is celebrated as Earth Day to mark the anniversary of the first, massive environmental protest in 1970, aimed at raising awareness about pollution and protecting natural ecosystems. Senator Gaylord Nelson chose this date to maximize student participation between spring break and final exams, launching a global movement.
