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Posted at 04:48 PM ET, 05/14/2012

All the world’s water: a drop in Earth’s bucket

Via USGS: Picture shows the size of a sphere that would contain all of Earth’s water in comparison to the size of the Earth. (Illustration by Jack Cook, Woods Hole Oceanographic Institution)
It’s raining today. In the spirit of water, pictured here is a spherical representation of all the world’s H2O compared to the size of planet as a whole. The U.S. Geological Survey (USGS) says the blue sphere shown encapsulates “all the water in the oceans, seas, ice caps, lakes and rivers as well as groundwater, atmospheric water, and even the water in you, your dog, and your tomato plant”.

Don’t let the small size of the sphere fool you.

“That tiny water bubble has a diameter of about 860 miles, meaning the height (towards your vision) would be 860 miles high, too!” USGS writes. “That is a lot of water.”

The sphere’s diameter covers the distance from Salt Lake City to Topeka, Kansas USGS notes. Its volume is 332.5 million cubic miles.

More on the planet’s water from USGS

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