How much pure water is on earth

You can unsubscribe at any time and we'll never share your details to third parties. More information Privacy policy. This site uses cookies to assist with navigation, analyse your use of our services, collect data for ads personalisation and provide content from third parties.

By using our site, you acknowledge that you have read and understand our Privacy Policy and Terms of Use. Share Twit Share Email. Home Earth Earth Sciences. Earth — Western Hemisphere. Many theories about the origins of water on Earth attribute it to collisions with comets and asteroids.

More information: water. Source: Universe Today. Citation : What percent of Earth is water? This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission.

The content is provided for information purposes only. Synthesizing nanomaterials from nature's blueprints 5 hours ago.

Can we assume constant C14 to C12 ratio in living tissues? Sep 19, Volcanologists want to put sensors directly into an Underground Magma Chamber Sep 16, Related Stories. New study finds oceans arrived early to Earth Oct 30, Oct 24, May 08, How Earth was watered Feb 28, Nov 19, Oct 23, Recommended for you. Coal creation mechanism uncovered 8 hours ago. Volcanic eruptions contributed to collapse of China dynasties 11 hours ago.

Yes, of course the most obvious fact about water is that it is wet, at least in the liquid state. But, there are many more facts about water that make it a most fascinating substance, one that all life on and in the Earth depends on. Not only do the oceans provide evaporated water to the water cycle, they also allow water to move all around the globe as ocean currents. Oceans are the storehouses of water nature uses to run the water cycle.

Water is always changing states between liquid, vapor, and ice, with these processes happening in the blink of an eye and over. The U. It is available in over 30 languages and also in an interactive version made for online. We also offer three age-related versions of an interactive versions.

Earth's water is always in motion, and the natural water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth.

Skip to main content. Search Search. Water Science School. How Much Water is There on Earth? Where is Earth's Water? Learn more. The Water Cycle Learn more. Water Basics by Topic Learn more. All Earth's water, liquid fresh water, and water in lakes and rivers.

Learn more at the Water Science School. Related Water Science School pages:. Date published: June 6, Filter Total Items: 5. Year Select Year Apply Filter. Date published: November 6, Note: This section of the Water Science School Date published: September 20, Date published: September 25, Date published: June 8, Attribution: Water Resources. Below are multimedia items associated with water basics. Filter Total Items: 4. Water scarcity is an abstract concept to many and a stark reality for others.

It is the result of myriad environmental, political, economic, and social forces. Freshwater makes up a very small fraction of all water on the planet. While nearly 70 percent of the world is covered by water, only 2. The rest is saline and ocean-based. Even then, just 1 percent of our freshwater is easily accessible, with much of it trapped in glaciers and snowfields. In essence, only 0. Due to geography, climate, engineering, regulation, and competition for resources, some regions seem relatively flush with freshwater, while others face drought and debilitating pollution.

In much of the developing world, clean water is either hard to come by or a commodity that requires laborious work or significant currency to obtain. Wherever they are, people need water to survive.

Not only is the human body 60 percent water, the resource is also essential for producing food, clothing, and computers, moving our waste stream, and keeping us and the environment healthy.

Unfortunately, humans have proved to be inefficient water users. The average hamburger takes 2, liters, or gallons, of water to produce, and many water-intensive crops, such as cotton, are grown in arid regions. According to the United Nations , water use has grown at more than twice the rate of population increase in the last century. By , an estimated 1. The challenge we now face as we head into the future is how to effectively conserve, manage, and distribute the water we have.

All rights reserved. A Clean Water Crisis The water you drink today has likely been around in one form or another since dinosaurs roamed the Earth , hundreds of millions of years ago.