Visit the official Earth Day site to learn about the world's largest environmental movement and what you can do to make every day Earth Day.

Apr 15, 2026 · Earth Day 2026 is Wednesday, April 22. So, what is Earth Day? How did it come to be? How can we celebrate Earth Day? Here are 10 activities and ideas to discover, enjoy, and respect …

2 days ago · Millions of people around the world will pause, at least for a moment, to mark Earth Day. The annual event is Wednesday.

1 day ago · Earth Day is a celebration that comes at a time when climate change is affecting communities across the globe. Earth Day, which falls on April 22 every year, began in 1970, after …

1 day ago · Earth Day began as a protest in 1970, but its meaning has evolved. Here’s how it changed - and what it represents today.

3 days ago · Earth Day is a grassroots initiative that has become the world’s largest secular holiday—around the world. Every year, Earth Day falls on 22 April. So, what exactly is Earth Day, …

Apr 21, 2025 · Earth Day is a global event which aims to highlight the importance of protecting the environment. It takes place annually on 22 April. It was set up in 1970 by Gaylord Nelson, a US …

2 days ago · How is NOAA addressing climate change, extreme weather, pollution and more? And how can you make a difference? Explore our Earth Day portal to find out! Be sure to check back …

2 days ago · The first Earth Day was held in San Francisco in 1970 after Senator Gaylord Nelson of Wisconsin called for teach-ins on college campuses nationwide to raise awareness of environmental …

1 day ago · Earth Day started as a US ‘teach-in’ 56 years ago. Now it’s a global event It was a U.S. senator from Wisconsin, Democrat Gaylord Nelson, who had the idea that would become Earth Day.