[aphall]

I knew this global warming business was going on for a long time. When I was in highschool, I took Environmental Science AP and one of the things that really depressed me that I learned was that in my lifetime, the Earth will suffer from what is called Light Pollution. Meaning, that humans will have populated so much of the Earth that city lights will mask the twinkle of the stars in the sky, no matter if you're in Yosemite as far away from the city or not. That class was depressing...