Some of the most peaceful experiences i've had while stoned is when I'd be off in the woods on a motorcycle or 4 wheeler. I'm sure a lot of people in cities all their lives can't relate, but i tell ya no one around but nature first hand is awesome. Sometimes (a lot of times)i'd find a scenic area and park burn 1

and listen to the rustle of the leaves of a jungle like canopy of trees, (this ain't no b.s. patch of woods, im talking about miles back in the middle of no where) Its kind of like you can feel natures energy being fully surrounded by it for long periods of time. You get zoned out and pin-point certain sounds or spot things, you see all kinds of animals, out there, (some of which will chase you). Either way a much more beautiful world to experience than any city i've been in.
But to ruin a semi relaxing picture of a forest type setting, the last time i went riding where i used to, half of it had been turned into a neighbor hood with a bunch of empty houses. And another portion had been cleared from logging. Not like the major part of the woods was effected, but the areas that were built on, i remember some awesome views. At some point in time we will spread across and destroy all the places like this. People aren't going to change no matter what i wish for the world. But if the environmental issues do happen to scare people into caring, to try to co habitate with mother nature not control her I think the world would be on a much better path.