I didn't know it was Earth Day either. I took the day off from work (nice sunny day for a change) and thinned some trees in my woods. Yeah, I cut trees down on Earth Day. They are the damaged or dying trees, and I make firewood from them. My commute was pulling my little cart up the hill with my saw, water, axes, and stuff.
I did have to replace a bolt that retains my rack and rear fender on my bike. That's what was making that rattly sound....