Holly Michael receives funding from the US National Science Foundation, the US Geological Survey, and the US National Park Service. Seawater intrusion is the movement of saline water from the ocean or ...

Communities along the freshwater Mississippi River are facing a growing threat from an intrusion of saltwater moving the wrong way up the river from the Gulf of Mexico. It has wreaked havoc on public ...

Saltwater is making its way up the Mississippi River in Louisiana and threatening drinking water supplies in the state — and it could soon reach New Orleans. The Mississippi River’s flow has declined ...

An essential feature of any sovereign nation is the existence of territorial boundaries and the inherent authority to decide who and what may cross those boundaries. The Supreme Court of the United ...