Earth Day
Earth Day is a yearly event on April 22 that celebrates protecting the environment. It began in 1970 and now involves people in many countries around the world.
The idea came from two threads. In 1969, John McConnell proposed a day to honor the Earth at a UNESCO conference in San Francisco. He envisioned a global celebration of the planet and peace. Around the same time, U.S. Senator Gaylord Nelson promoted a nationwide environmental teach-in on April 22, 1970, to raise awareness of pollution and conservation. Advertising writer Julian Koenig helped give the movement its name by suggesting “Earth Day.”
The first Earth Day in 1970 was mainly a United States event. It inspired huge participation—about 20 million Americans took part in rallies, teach-ins, and other activities. The United Auto Workers (UAW) provided major financial and organizational support, helping the effort grow quickly. Denis Hayes was the national coordinator, and the day expanded from classrooms to large community activities like cleanups and tree plantings.
In 1990, Earth Day went international, with events in about 141 countries. This broad reach helped raise awareness of global environmental issues and paved the way for new laws and agencies in many countries, including the United States’ Environmental Protection Agency. Since then, Earth Day has continued to grow with campaigns, education, and citizen action.
Today, Earth Day is organized by EarthDay.org (formerly Earth Day Network). It’s a global movement that combines education, community service, and policy advocacy. Each year has a theme to focus attention on a major issue, such as plastic pollution, protecting species, or climate action. Recent themes have included End Plastic Pollution (2018), Protect Our Species (2019), Climate Action (2020), Restore Our Earth (2021), Invest In Our Planet (2022–2023), Planet vs. Plastics (2024), and Our Power, Our Planet (2025). Many activities happen online and in person—school projects, tree plantings, park cleanups, and community programs—reaching millions of people in hundreds of countries.
Earth Day also faces criticism. Some say it tends to attract a mostly middle-class audience and doesn’t always reach marginalized communities. Others argue that long-term change requires more than events: it needs strong policies, funding, and systemic action. There’s also a historical note that the date was chosen in part for participation and weather, and not for any political meaning.
Today, Earth Day remains a global call to protect the planet through education, community action, and smart public policy. It invites people everywhere to learn, speak up, and take practical steps to create a healthier environment for future generations.
This page was last edited on 3 February 2026, at 19:17 (CET).