A Picture is Worth... Water & Air, All of It


Left: All the water in the world (1.4087 billion cubic kilometres of it) including sea water, ice, lakes, rivers, ground water, clouds, etc. Right: All the air in the atmosphere (5140 trillion tonnes of it) gathered into a ball at sea-level density. Shown on the same scale as the Earth.

::Dan Phiffer, via ::reddit

See also: ::Chinese Water: A Picture is Worth..., ::A Picture is Worth... Air Pollution in China

Tags: A Picture Is Worth