A quick science experiment shames soda drinkers and aliens

So what if aliens bleed acid? We breathe acid, suckers! And we can prove it! And while we're doing that, we can show why soda is very mildly bad for you. » 8/23/13 10:30am 8/23/13 10:30am

Acid rain is falling again, and now it's caused by factory farms

In the 1970s, acid rain caused by sulfur emissions killed trees and even dissolved statues. But the US Clean Air Act dialed back the deadly rainfall. Until now. Why has the rain gone acidic again? » 6/21/10 3:28pm 6/21/10 3:28pm