What we do every day matters more than what we do once a year. What is Earth Day? Established in 1970 in response to rising concerns about pollution, Earth Day has grown into the largest civic observance in the world. Earth Day is celebrated every year on April 22nd and serves as a global reminder that environmental protection is not optional—it is essential. Earth Day may have begun as a celebration, but now it has grown into a reflection: how are we treating the only planet