The Mighty Mekong's Last Hope

The mighty Mekong is considered south-east Asia's greatest river and has nourished generations of people for millennia. Now it's drying up, under attack from dam building, overfishing, climate change and sand mining. This fascinating natural history documentary looks at the threats that the Mekong faces, the effect this will have on the people who rely on it and what can be done to save it.