Some of these questions are easy enough for kids to answer, while other Earth Day queries are guaranteed to challenge even the most ardent of environmentalists. For example: What are the four main ...

Give your friends an #EarthDayChallenge to try, like picking up 15 pieces of litter, or simply share a few facts about global warming or rainforest preservation to help spread awareness. This Earth ...

you'll find a variety of Earth Day facts below that you might not already know. In this collection of trivia bits, you'll find interesting facts on how the observation got its start, the founders ...

as well as looking at some fascinating Earth Day facts. In honor of Earth Day, here are 25 facts about the history of our celebration of Mother Earth, as well as facts about the environment that ...

Here are the best Earth Day activities for kids and adults ... or simply share a few facts about global warming or rainforest preservation to help spread awareness. This Earth Day, try out ...