Picture shows how all the water on Earth would fit into one 860-mile-wide ball
When people talk about our water supply running out, it's often difficult to imagine - but according to the U.S. government's Geological Survey, all the water on Earth would fit into an 860-mile-wide bubble.
Around 70% of Earth's surface IS water-covered - but it's a very, very thin layer.
Although 70% of Earth's surface is water-covered, it's a very, very thin layer
Every sea, river and underground lake would fit into what looks like a tiny blue 'blister' on the side of our planet.
'As you know, the Earth is a watery place - but all the water on, in, and above the Earth would fill a ball the size of that tiny blue sphere sitting on the United States, reaching from about Salt Lake City, Utah to Topeka, Kansas,' says a USGS release.
The oceans hold about 96.5 percent of all Earth's water.
Water also exists on Earth in the air as clouds and water vapour, in lakes and rivers, in icecaps and glaciers, and in living creatures - but all of that would fit into the tiny ball.
'The vast majority of water on the Earth's surface, over 96 percent, is saline water in the oceans,' says the USGS.