And yes, it is the way of human beings to run roughshod over nature. Look at any city.
Botany and biology are science that you cannot escape, and trees are a big part of a healthy planet. No healthy planet, dead humans.
Now, I do not think that humans are capable of destroying the planet; that stance is pure arrogance of stupid people and the resulting group think that so many people enjoy. Earth has been around longer than we can know, and will continue to be around long after humans have killed themselves off, which no doubt will happen.
I find the interaction of the Earth and organisms endlessly interesting.
Unless of course that organism is an idiot, which seems all too common.
I apologize for being serious; we now return to your regularly scheduled LOL cats.
I guess you don't fly much, do you. Or if you do you never looked down.
You're statement that trees would be better off without man is utterly stupid, or was that you supposed sarcasm?