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Despite the need to reduce carbon dioxide emissions, the burning of coal has only been accelerating.
Researchers demonstrate a significant jump in the efficiency with which heat can be converted directly into electricity.
ArrayPower says its “sequenced inverter” will cut the cost of solar by more than 10 percent.
Such materials could be used to cool computers and buildings, and harvest waste heat in cars.
Researchers achieve a goal they’ve been after since the 1980s—the advance could make cars and airplanes lighter, and renewable energy more practical.
An Israeli company aims to commercialize microbial fuel-cell technology.
Electricity prices will increase, but your bill could actually come down.