The Breathing Earth

Earth, our home planet, is a beautiful blue and white ball when seen from space. The third planet from the Sun, it is the largest of the inner planets. Earth is the only planet known to support life and to have liquid water at the surface. Warm near the equator and cold at the poles, our planet is able to support a variety of ecosystems because of its diverse climates. Earth's climates have changed incredibly during its 4.6 billion year history. Today, climates are warming more rapidly as natural proces