A study has found most cattle farmers are willing to invest in enhancing their dams, including improving water quality, biodiversity and reducing emissions—if they receive fair government support.

China is planning to build a series of enormous hydropower dams. NPR's Ayesha Rascoe talks to Georgetown University professor Mark Giordano about the project and its effect on Sino-Indian relations.

Despite billions being spent on impact assessments around the world, they often end up being just dusty reports on the shelf.