Large Earth, tiny humanity

For those of you who think that the atmosphere and oceans are much too big for us to be able to have any effect on.

Actually they're not as big as you might think!

Global water volume (left) ~ 1.4 billion km^3

Global air volume (right) ~ 4.2 billion km^3

Global earth volume ~ 1100 billion km^3

Credit: ADAM NIEMAN / SCIENCE PHOTO LIBRARY