Earlier this spring NASA announced a new research model that predicts that ocean worlds are far from rare, and our galaxy might be full of them. And a new study examines evidence that Pluto may have had an underground ocean all along!

Welcome back to SciShow Talk Show where Hank Green talks with interesting people! In this episode Hank talks with Mike Potts, an environmental engineer at Pioneer Technical Services, Inc. with special guest Jessi Knudsen Castañeda....

Fresh water accounts for only 2.5% of Earth's water, yet it is vital for human civilization. What are our sources of fresh water? In the first of a two part series on fresh water, Christiana Z. Peppard breaks the numbers down and...

In this video Paul Andersen explains how water is unequally distributed around the globe through the hydrologic cycles. Seawater is everywhere but is not useful without costly desalination. Freshwater is divided between surface water...

A major drought hit the Maya region around 800 CE, putting serious pressure on farming and water supplies in many cities. While some scientists believe this drought helped cause the Maya collapse, others point out that many cities in...

Discover Earth's physical features, from oceans to mountains, and learn how land and water form our planet's diverse landscapes.

Discover the differences between lakes, ponds, and springs, and learn how each forms. Explore how lakes often have deeper waters while ponds are shallower, and see how springs bring groundwater back to the surface, creating fresh...

Delve into the fascinating world of ocean currents, from surface flows influenced by wind patterns to deep currents driven by water density. Learn about the crucial role of currents in regulating global climate and distributing...

In today's vid, you'll learn:<br/>
- What potab<br/>le water is
- How we can get it by treati<br/>ng fresh water sources
- How we can get it by desalinating sea water

California's Central Valley grows a large portion of America's food – and that requires a huge amount of water. But the region is experiencing a drought and drying up the surface water that farms rely on. So farms are now pumping water...

"The Ocean's Green Machines" is Episode 3 in the six-part series "Tides of Change", exploring amazing NASA ocean science to celebrate Earth Science Week 2009.



One tiny marine plant makes life on Earth possible: phytoplankton....

The varied landscapes of the United States have unique relationships with water. On the East Coast, rain is a regular occurrence. In the West, drought is a constant threat. Rivers and lakes fed by rainfall, snowmelt or a mix...

It explains tidal energy, wave energy and ocean thermal energy.

Agriculture in Pakistan is dependent on irrigation from the Indus River. But over the years, these freshwater resources have become scarce. Today, it is one of the world’s most depleted basins. To tackle this,...

China discarded 200.7 million cubic meters of waste into its coastal waters in 2018. <br/>

Research predicts that within 15 to 20 years, human-caused deoxygenation will be felt across the world's oceans. A new study published in the American Geophysical Union's journal found that oxygen levels in the world's oceans are...

It explains the use and amount of water needed in our daily life and identifies the various sources of water.

This video provides an overview of the world's oceans, their importance in regulating the environment, and how climate change is negatively impacting them. It explains ocean currents, the Gulf Stream, and the global conveyor belt,...

It talks about the availability, renewal and scarcity of freshwater resources. It lists the factors responsible for freshwater scarcity.

The video discusses the sources of water, including surface water and groundwater, and how they are distributed in different parts of the world. It also highlights the factors that influence water distribution and the importance of...