The Columbia River is critical for fish, energy, commerce and identity. But it faces an uncertain future. How much more can ...

but the longest river in the world is the Nile in north-eastern Africa, at a whopping 6,650 kilometres! The Amazon river is the second longest in the world but the largest by the amount of water ...

It looks like you're using an old browser. To access all of the content on Yr, we recommend that you update your browser. It looks like JavaScript is disabled in your browser. To access all the ...