Friday March 3, 2023
Yale Environment 360 —
Among the many ailments plaguing Southeast Asia’s Mekong River, “hungry water” stands out with particular clarity. In recent dry seasons, the Mekong has in places turned a pristine blue as upstream dams rob it of the nutritious particles that normally color the river a healthy mud brown. It’s a phenomenon that can be highly destructive, with the sediment-starved water eating away at unbuffered river banks — hence the “hungry” epithet — and causing harmful erosion.
It also encapsulates the troubled state of the Mekong, a river that may look healthy on the surface but has grown increasingly sick from a wide range of problems, including dam building, overfishing, deforestation, plastic pollution, and the insidious impacts of a changing climate. During El Niño-induced droughts in recent years, things got so bad that some people suggested the Mekong River was approaching an ecological tipping point beyond which it could not recover.