February 26, 2008
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.
[permaculture] all the water and all the air in the world,
Lawrence F. London, Jr., 03/01/2008