The Ganges is known as a wondrous river of legend and history. After decades of false starts, scandals, and wasted money under previous governments, Indian Prime Minister Narendra Modi launched a campaign in 2014 to clean the Ganges and save it for future generations. Find out more about the Ganges, its problems, and what can be done to save it with our interactive map.
Most of the great cities of the world were built on rivers, for rivers have provided the water, the agricultural fertility, and the transport links essential for most great civilizations. This presents a series of puzzles. Why have the people who depend on those rivers so often poisoned their own water sources? How much pollution is enough to kill a river? And what is needed to bring one back to life?