We’re all for sustainable sustainability — the concept of making simple, everyday changes that enormously benefit the environment in the long run.

So, to celebrate Earth Day this year, we’ve created a neat little graphic to put in your email signature, show off your green bone, and remind people to think about the simple things that matter. We call it an eco-signature.

This Brain Pickings original is a digital freebie, and completely open-license and copyright-free. So snag away — download the image here, or just right-click/ctrl-click the image below and save it to your hard drive, then pop it in your email client’s signature preferences.

Got doubts about how much of a difference this little thing will make? Doubt not: The average employee prints 6 unnecessary pages per day, amassing a grand total of 1,410 per year. How many people did YOU email today?

Learn a couple more smart, handy tricks for easily relieving the daily tree-trashing epidemic.