Located in the stratosphere, the ozone layer blocks potentially harmful ultraviolet energy from reaching our planet's surface ...

Phosgene gas can, over time, cause serious injuries or ... Play the USA TODAY Daily Crossword Puzzle. Using and igniting hairspray or starting fluid when trying to get a tire bead to seat on ...

It's been 40 years since groundbreaking research announced the discovery of a hole in the ozone layer, a revelation that launched a rapid and successful effort to ban chemicals in hairspray ...