Sometimes I think Earth Day is just another way to appease our guilt and make it look like we are trying to do something to save the livability of the planet.
This year, a friend was thinking of attending a tree planting event, but found that the event, near his neighborhood, was fully booked. Maybe not enough saplings at that location, but other locations, in the city, still had openings. He wanted to walk, rather than drive across town, but he may attend anyway regardless of whether there is a sapling for him to plant.
The events offer instructions on where to park for attending the event.
Years ago, another friend walked into a meeting, I was at, with sapling in hand asking people if they wanted to take one for planting. I took one and then walked to Sehome Hill to plant it myself. There wasn't an event. I don't know if it survived or not. There wasn't an event to show me how to plant it.
Now I can't tell if it survived, or not, as when I look at that area, I just see lots of trees anyway. I forgot exactly where I planted it.
Many more years before that, I remember the first Earth Day while I was in high school. The art teacher led a tree planting event, but a biology teacher thought the trees wouldn't survive on that hillside which was naturally a grassland environment.
That event was still a nice memory.