This year marks the 55th anniversary of Earth Day! Every year on April 22, people worldwide mobilize to address some of the most urgent threats facing our environment, from climate change to ...

While Earth Day, observed annually on April 22, may not be a major holiday that’s widely celebrated outside of classrooms, it’s more than worthy of honoring. After all, without Earth, where would we ...

A college student in a gas mask "smells" a magnolia blossom during the first Earth Day on April 22, 1970 in New York City. Credit - AP More than 8 billion people inhabit Earth, and soon a springtime ...

A giant sequoia located in Sequoia National Park in California, the General Sherman is 52,500 feet in volume and is more than 2,000 years old. The General Sherman giant sequoia is the largest known ...

HOUSTON — The first Earth Day started in April 1970, before the U.S. had an agency solely dedicated to regulating environmental protection. U.S. Senator Gaylord Nelson of Wisconsin spearheaded a day ...

ROCHESTER, N.Y. – Are you commemorating Earth Day this year? For me, it brings back memories of planting a tree on April 22 as a nine-year-old when the very first Earth Day was held in 1970. The date ...