Energy & Green Tech

Cool roofs outperform green roofs in urban climate modeling study

Painting roofs white or covering them with a reflective coating would be more effective at cooling cities like London than vegetation-covered "green roofs," street-level vegetation or solar panels, finds a new study led by ...

Energy & Green Tech

Bacterial batteries that harvest energy from soil

A U.K. university spin-out has developed a bacteria-powered battery that harvests energy from microorganisms in the soil to recharge itself, with a prototype already rolled out in Brazil.

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