The National Academies of Sciences, Engineering, and Medicine are private, nonprofit institutions that provide expert advice on some of the most pressing challenges facing the nation and world. Our ...

Ask a geoscientist how he or she feels about the phrase, "out of sight, out of mind," and you likely will meet some serious resistance. The scientist likely would explain that learning how different ...

Wetlands like freshwater ponds, swamps, and marshes are excellent natural water purifiers. They are also uniquely equipped to improve water clarity and quality through the removal of kicked-up ...

Although constructed wetland treatment systems have been used in a variety of applications, uncertainty in adequately determining flow conditions or hydraulic residence times ("hydraulic efficiencies" ...

An international research team has presented challenges and knowledge gaps in the implementation of large scale underground storage of hydrogen. The main issues associated with this technology relate ...

The key to successful restoration of a tidal wetland marsh plain is a thorough understanding of the physical processes involved. Of singular importance is the hydrology, including ground water flow ...

When it comes to advancing nutrient management planning for croplands across the United States, it is important to evaluate phosphorus indices to ensure accurate phosphorus loss risk assessment. Until ...

When the atmospheric surface pressure is just right, a temperature difference can drive a continuous flow of rarefied gas through the soil matrix — a previously unrecognized process on Mars. De Beule ...