The Ganges river in India is more than 2,500km long and has the most populated river basin in the world. Hundreds of millions of people and a huge range of wildlife rely on the river Ganges. But ...

The ocean is vast and on average about 4,000 metres deep. It contains 1.3 billion cubic kilometres of water – that’s 97% of all the water on the surface of the Earth. [1] Home to over 240,000 known ...