What Percent of Earth is Water?

By Matthew Williams December 1, 2014
What Percent of Earth is Water?

Sources of Water:

Volume vs. Mass:

Source of Earth's Water:

  • USGS - How much water is there on, in, and above the Earth?

  • Wikipedia - Water Distribution on Earth

  • Wikipedia - Origin of water on Earth

    • Matthew Williams

    Matthew Williams

    Matt Williams is a space journalist, science communicator, and author with several published titles and studies. His work is featured in The Ross 248 Project and Interstellar Travel edited by NASA alumni Les Johnson and Ken Roy. He also hosts the podcast series Stories from Space at ITSP Magazine. He lives in beautiful British Columbia with his wife and family. For more information, check out his website.