Topic: freshwater

Farmers examine their catch from a human-made fish pond. On Kollerlu Lake, ponds such as this were once limited to the shoreline and shallows. (Monika Mondal / Undark)

India's vanishing freshwater lake

Monika Mondal - Undark
High water cover the road in the Box Town neighborhood as a waste can floats Sunday, May 8, 2011 in Memphis, Tenn. as flood waters continue to rise along the Mississippi River. (AP Photo/Wade Payne) (AP)

US rivers becoming saltier

Sujay Kaushal, Gene E. Likens, Michael Pace, Ryan Utz - The Conversation