Christians, would it be morally wrong to litter if there were no man made

[hydropowerman34]

law against it...? If so, how could you decide it is wrong if the biblical god does not mention it? And by litter, I mean something that would not harm the earth, but is unsightly when you see it laying on the side of the road.
Belinda, if I'm driving down the road and I toss out a banana peel, is that wrong for me to do? Or even a soda can? How does that harm the earth? I mean, isn't house harming the earth? That's much bigger than a soda can.