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Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

More than 100 rivers and canals flow beneath Tokyo, but from the ground it’s hard to notice them. Why has the city turned its back on water?

We're working on a project to map all of Europe's waterways and dams.

Get discount tickets to the Liquid Lates party.

Rivers are one of nature's most powerful forces -- they bulldoze mountains and carve up the earth, and their courses are constantly moving. Understanding how they form and how they'll change is important for those that call their banks and deltas home. In this visual-packed talk, geoscientist Liz Hajek shows us how rocks deposited by ancient rivers can be used as a time machine to study the history of the earth, so we can figure out how to more sustainably live on it today.