Spotting those gross algae blooms by drone

As more New Hampshire lakes suffer from blooms of toxic algae due to warming weather and increased development, two water bodies in Henniker were part of a study of a faster way to spot outbreaks, using drones. “With the (drone), a small lake might take as little as...

A ‘passive house’ skycraper in Boston

An 812,000-square-foot area for offices at the Winthrop Center, a mixed-use commercial and residential building in Boston, has gotten Passive House certification, apparently the first in the U.S. Comparable buildings in Boston consume 150% more energy than Winthrop...

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