No species has changed the environment of the earth as much, and as fast, as human beings. As more and more life forms become endangered, it is time to get to k
The past shapes our future, and our planet's past has been an especially fascinating one. Knowing about the origin of life, the extinction of life forms, and th
The climate of the earth has changed many times before in the planet's 4.5 billion-year-old history. But today, its temperature is rising faster than ever befor
Scientists have been exploring, designing, and discovering new technologies that will leave our environment intact instead of destroying it. Energy from the shi
Outer space (often called space) comprises the relatively empty regions of the universe outside the atmospheres of celestial bodies. Increase your green quotien