You've probably heard the term acid rain, but do you actually know what it is and how it affects you? We're here to clear ...

7 "unaccounted for" after California fireworks warehouse explosion, officials say The Founding Fathers Didn't Eat Hamburgers, Hot Dogs on July 4. Here's What They Had Instead Jury reaches verdict in ...

Scientists and regulators are divided over the threat posed by rising levels of a chemical called TFA.