I hadn't heard of MotherEarth Day but we have Earth Day every April and I've done things for that, particularly with students. I'm a long-time recycler, going back all the way into the early 90's (maybe even late 80's) when the community where I grew up in San Diego distributed recycle bins to all households. They were little green plastic boxes, designed to be the length and width of a folded newspaper and about 18 inches tall. We could toss bottles and cans in there in addition to the newspapers. The recycle bin my current community uses is much larger and I placed it conveniently -- lid propped open -- right outside the door from our kitchen to our garage, one step further from the kitchen trash bin and I've trained my family to recycle.
I also switched from plastic storage containers in the kitchen to glass jars nearly twenty years ago, I stopped buying plastic water bottles around that time, and I always think before throwing stuff away (Is there a way to re-use it?).
Also, I have been contributing monthly (like a subscription) to Planet Wild, which is an organization that uses subscribers' donations to fund earth-friendly projects around the world, a different project every month, which the subscribers can vote on. I learned about it from a few of the science channels I watch on YouTube.
https://planetwild.com/
