Tree ring researchers use a metal increment borer to extract a pencil-thin sample from the tree, extending from the newest rings at the bark to the oldest rings at the center. The process does not cause permanent injury to the tree. Photo by Nicole Davi
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By studying thousands of buildings and analyzing their electricity use, Columbia Climate School Dean Alexis Abramson has been able to uncover ways to significantly cut energy consumption and emissions. Watch the Video: “Engineering a Cooler Future Through Smarter Buildings“