Earth Day
One planet. One chance. Protect what we love.
About
Earth Day is observed on April 22 each year to demonstrate support for environmental protection. More than one billion people in over 193 countries participate, making it the largest civic event on Earth. Activities range from planting trees and cleaning beaches to lobbying governments for clean-energy legislation.
History
Senator Gaylord Nelson of Wisconsin proposed a national day for the environment after witnessing the devastation of the 1969 Santa Barbara oil spill. On April 22, 1970, 20 million Americans participated in the first Earth Day, leading to the creation of the US Environmental Protection Agency and landmark legislation including the Clean Air Act and Clean Water Act. Earth Day went global in 1990 with 200 million participants in 141 countries.
Where It's Observed
Cultural Context
US United States
Earth Day was born in the US in 1970 and remains a major civic event. It directly led to the EPA, Clean Air Act, and Clean Water Act. Annual community clean-ups, legislative advocacy, and campus events define the day.
KR South Korea
South Korea marks Earth Day with national campaigns on waste reduction and recycling. The country operates one of the world's most advanced recycling systems, and Earth Day aligns with Korea's 2050 Carbon Neutrality commitment.
JP Japan
Japan observes Earth Day with city events and special emphasis on mottainai — a cultural concept expressing regret over waste. Zero-waste living, furoshiki cloth wrapping, and local farmers' markets are central activities.
How to Participate
- 01Plant a tree or tend a garden
- 02Join a local litter pick or beach clean
- 03Switch to reusable bags, bottles, and containers
- 04Calculate and commit to reducing your carbon footprint
Frequently asked questions
When is Earth Day?+
Earth Day is observed annually on April 22. The date is fixed each year — April 22 — and does not shift based on the lunar calendar or weekday.
What is Earth Day?+
Earth Day is observed on April 22 each year to demonstrate support for environmental protection. More than one billion people in over 193 countries participate, making it the largest civic event on Earth. Activities range from planting trees and cleaning beaches to lobbying governments for clean-ene…
Is Earth Day a public holiday?+
Earth Day is an international observance or awareness day, not a public holiday in most countries. It does not typically result in days off work or school closures, though some countries and organisations hold official events.
How can I participate in Earth Day?+
Plant a tree or tend a garden Join a local litter pick or beach clean Switch to reusable bags, bottles, and containers These are some of the most accessible ways to engage with the day's purpose.
Which countries observe Earth Day?+
Global — 193 countries.
Mark the date
Download a free printable calendar for 2027 and never miss Earth Day.