Happy Earth Day! For the 55th year, the world is using the day to celebrate Mother Nature and the wonderful planet we live on. "Earth Day really is a symbol of the environmental movement," Sarah ...

Planet Earth: Everything you need to know — Earth Day: What is it and why does it matter? — Earth Day 2024: Witness our changing planet in 12 incredible satellite images "NASA Science ...

Earth Day started in 1970 when people — including Wisconsin Sen. Gaylord Nelson — brought attention to the impact oil spills, pollution and smog were having on the planet. "Then in January ...