Am I mistaken, or was Earth Day even a thing back when I was a kid? I kind of think not. I guess I was a kid a really long time ago though I did a little checking on it, and it turns out that it was first celebrated in San Francisco (named after St. Francis, the patron saint of ecology) on March 21st, 1970. It is now celebrated in over 175 countries around the world, with the intention of increasing awareness and appreciation of the Earth’s natural environment and resources. I give a big thumbs up for anything that gives our younger generation an opportunity to think about what the Earth has to offer, and how to make it last for generations yet-to-come. So in the spirit of Earth Day this week, StorySnoops has created a list of books for teens and tweens that have environmental themes or environmentally conscious characters—just a little something to reinforce what they’ll be hearing about in school this week. Enjoy!