Heat waves hit heat islands hardest

Extreme summers like that of 2012—which saw record temperatures in cities across the U.S.—may be atypical, but experts say they will return, especially as the planet warms under climate change. And as they do, cities ...

How does your green roof garden grow?

Growing plants on rooftops is an old concept that has evolved from simple sod roofing to roof gardens and new, lightweight "extensive green roofs". Modern green roofs have environmental and social benefits; they can reduce ...

New 'cool roof time machine' will accelerate cool roof deployment

Cool roofs can help keep buildings cool, thus lowering the building's energy use, while also mitigating the urban heat island effect by reflecting sunlight away from buildings and cities. But as cool roofs age and get soiled, ...

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