Do you know why we are all sometimes called "carbon units"?
Did you know that, in Egyptian mythology, the sky goddess Nut married the Earth god Geb, and that the Sun god Re was angry, and so forced them to separate?
Air pollution can get high in the atmosphere – high above most of the clouds you see in the sky. Scientists are finding air pollution more than 20 miles above the surface of the Earth. That’s in the stratosphere...Read more