Related: 10 devastating signs of climate change from space How well do you know Earth? Take the Earth Day quizzes to find out. Earth Day is an annual event that started in 1970 when 20 million ...

Earth Day is celebrated on April 22 each year, promoting environmental protection and awareness since 1970. Now celebrating its 55th anniversary, this year's Earth Day theme, "Our Power ...

Here's everything to know about Earth Day. Earth Day’s 2025 theme is "Our Power, Our Planet," according ... Play the USA TODAY Daily Crossword Puzzle. The first Earth Day was celebrated ...

WASHINGTON — As communities across the DMV commemorate Earth Day, it’s worth remembering how this annual celebration began and why it remains so vital today. Earth Day was first observed on ...