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Will High Tech Cool a Hot Earth?

Solar engineering and other exceptionally ambitious new technologies to deal with the reality of rising global temperatures come riddled with uncertainties. To illustrate how complex the problem is and what kind of challenges lie ahead, here are three contrasting, and somewhat fantastical, scenarios

By David W. Keith and Andy Parker

The Science of the Next 150 Years

Scientific American asked leading scientists and science writers to lookforward to what the world will be like in the years 2063, 2113 and 2163, and tell us what role science and technology will play in our future

By THE EDITORS

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