In the 40 years since our first Earth Day, we’ve come a long way in understanding our environment and how our activities affect its health and wellbeing. We’ve passed laws, changed our habits and vowed to do better for the sake of future generations.

This Earth Day, I pose a challenge to you—go out of your way to save the environment in your daily lives. I’m sure you’re a dynamo at bringing canvas bags to the supermarket, taking public transportation as much as you can and only using compact fluorescent light bulbs in your lamps—but what else can you do?

It’s not enough to do “the easy” stuff to save the environment. Challenge yourself to do more this Earth Day. Think of all those “green tips” you’ve seen on websites or heard your friends talking about. Grab onto two or three new ways to save the planet and make them a reality in your life. Then, once you’ve perfected those—get moving onto more—and so on and so on! Keep learning about the world around you and don’t be afraid to dig deeper to find out the truth when you think there’s more to the story.

This is the only planet we have, let’s treat it right so future generations will have clean air to breath, fresh water to drink and biodiversity to discover.