From a purely objective point of view—there is no such thing—the dolorous fact that human beings are very fucked-up is nothing to get angry about. After all, it's not their fault. Homo sapiens is merely one outcome at the bottom of an enormous evolutionary tree. That outcome is Kurt Vonnegut's "crock of shit." It looks like that leaf node (technical term) will be pruned sometime in the next few centuries, thus the hominin branch will become a dead end.
It seems to me that on "Earth Day" one should not even try to be objective. Why would one try to cultivate compassion (using the Buddhist term) for all living things when one species is at war with all the others? And these fucking humans don't can't even give a shit. These humans think they're the cat's meow, the greatest thing since sliced bread! And who is there to tell them different, I mean, apart from me?
I did a Google news search for Earth Day, and there it was—human self-centeredness everywhere you look.