[FictiveEvan]

I think your analogy is flawed, since it assumes that the trash was put there by another person (just like CO2 in the atmosphere was put there by other people). A better one would be if you came upon a barren, ugly landscape - would you be morally obligated to improve it?

That said, I see your point about us humans managing our environment and making it more to our liking. We've been doing it for thousands of years. I just don't understand what basis we have for making the sort of radical changes proposed by "climate change" alarmists. How do we know the outcome will be to our liking?