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This airborne river may be the largest river on earth

On a typical sunny day in the Amazon, 20 billion metric tons of water pass through the trees and into the air. This is more than just a feat of Nature -- it’s at the heart of South America’s economy, as researcher Antonio Donato Nobre explains.

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TED Books
Small books, big ideas.

Now you can dig deeper into ideas with new, original books from TED. Long enough to explore a powerful idea but short enough to read in a single sitting, TED Books pick up where TED Talks leave off. This wide-ranging series will cover everything from architecture to business, space travel to love, and is perfect for anyone with a curious mind and an expansive love of learning.

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About TED

TED is a platform for ideas worth spreading. Started in 1984 as a conference where technology, entertainment and design converged, TED today shares ideas from a broad spectrum — from science to business to global issues — in more than 100 languages. Meanwhile, independent TEDx events help share ideas in communities around the world.

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