Cloud Cast emits a cool mist over individual humans, instead of cooling an entire plaza.
Glass-paneled walls filled with water absorb heat during hot spells and distribute it during cold snaps.
Massachusetts wins top marks for energy efficiency in an energy contest between the Patriots and Seahawks.
An urban plan for Paris could reduce the city's greenhouse gas emissions by up to 75 percent in 2050.
California is quickly becoming a leader in renewable energy storage development as the state sets a climate goal of obtaining 50 percent of power from clean sources.
Car manufacturers rolled out a series of ever-larger cars and menacing trucks.
A list of unintended consequences in the big drop in oil prices in the past few months, now under $50 per barrel.
The process that tints the window actually produces, instead of uses, a small amount of electricity, which could be harnessed to power electronics.
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