If Grace is there with you — look in her memories, she can show you the world we come from. There's no green there. They killed their Mother, and they're gonna do the same thing here.
—Jake Sully, Avatar
Thorn: I know, I know. When you were young, people were better.
Sol: Aw, nuts. People were always rotten. But the world was beautiful.
Earth, man. What a shithole.
—Johner, Alien: Resurrection
"It's really beautiful right around sunset. The methane emissions really pick up the colors."
—Stanley Ipkiss, ''The Mask
"The Rio Tinto (Red River) in Spain has had a shitty time ever since humanity turned up. We're not indulging in hyperbole, here; Homo sapiens have been dumping pollutants in the river for over 5,000 years, a number you may recognize as five times the combined duration of the Roman Empire and the Egyptian Empire. To be fair, we've not been doing it because some aged king did the old "Fuck this river in particular" routine several millennia ago and no one ever got around to stopping. Rio Tinto just happens to run through an area with some of the richest deposits of copper, gold, and silver in the world, and as such the area has been screwed by the world's foremost mining boners since time immemorial...Over time, it acquired its characteristic red color from heavy metals that crept in as a side effect of mining. The color's not all that trickled in, either. The river is actually even more lethal than its uninviting appearance suggests. The pH of the water hovers around 2, placing it on par with stomach acid. Yes, Rio Tinto could literally digest you."