Tagged With towers

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The pop-up city is an idea that dug its way into our collective brain a century ago as the first steel buildings rose — a dream that's as common in cartoons as it is in urban planning. And for the first time in history, it's technically possible.

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In a remote stretch of the Amazon rainforest, a skinny steel tower will soon rise over 300m into the sky — higher than the Eiffel Tower, way higher than the trees. The Amazon Tall Tower Observatory is a joint effort by Brazil and Germany to figure out exactly how carbon dioxide fluctuates inside the South American rainforest, one of the "green lungs" of the planet.