Total Water on Earth = 1,400,000,000 km3
| Earth's Total Water Supply | Earth's Total Freshwater Supply |
|---|
97.2% Oceans (saltwater)
2.8% Freshwater
100.0% Total Water on Earth | 2.380% Icecaps, glaciers
0.397% Ground water
0.022% Surface water
0.001% Air and soil
2.800% Total Freshwater on Earth |
source: USGS Water Resources Outreach Program http://water.usgs.gov/outreach/OutReach.html 30jul01
