Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. The term excludes seawater …

Apr 3, 2025 · Every living thing on Earth needs water to survive, but more than 100,000 species, including our own, need a special kind of water that can only be found in certain places and is …

Aug 7, 2025 · Freshwater biomes support an astonishing diversity of life. Though they make up only about 3% of Earth’s water, they host 10% of all known animal species and 40% of all fish …

Dec 23, 2025 · From sustaining agriculture and energy to shaping landscapes and communities, freshwater is essential. NASA’s Earth science data helps the nation manage this vital …

Water is the world's most precious resource. WWF protects freshwater ecosystems—securing clean water, healthy rivers, and biodiversity for people & nature.

Jun 8, 2018 · The definition of freshwater is water containing less than 1,000 milligrams per liter of dissolved solids, most often salt. As a part of the water cycle, Earth's surface-water bodies are …

Freshwater is defined as having a low salt concentration usually less than 1%. Plants and animals in freshwater regions are adjusted to the low salt content and would not be able to survive in …

Aug 8, 2022 · Freshwater is where most of the water we drink comes from and plays countless other important roles in nature. Learn more about the biome and how climate change is …

Water is essential to life on Earth. It has three phases (solid, liquid, and gas). In these three phases, water ties together the major parts of the Earth’s climate system — air, clouds, the …

Freshwater is one of the most important substances for life on Earth. Freshwater ecosystems include lakes, rivers, groundwater and springs.