To clarify, I would not cut a tree or branch if it has significant value. I wouldn't even cut the tree down unless if its like an invasive acacia or something, at which point I am doing a favor for the environment, or something like a fire break, where i am doing the fire department a favor. I would never just cut down a mature oak. I would a 2 inch branch or something like that, though. And by park, i mean like a small urban forest that shows up in green on google maps (If you know what i mean).