CO2 ventilation breakthrough could turn city rooftops into bumper vegetable gardens

As the world's cities grow, the hunt is on for ways to make them greener, more sustainable, and more livable. Rooftop farms and gardens that take advantage of underutilized roof space are a popular option, providing new food resources while simultaneously cooling the surrounding area, increasing building insulation, and improving air quality. But the conditions on rooftops—greater solar radiation, more wind exposure, lesser soil moisture—often mean that plants are smaller and less healthy. A team led by Dr. Sarabeth Buckley, now at the University of Cambridge, theorized that repurposing the CO2 from building exhaust as a kind of fertilizer might help counter some of these challenges. To explore this, they grew corn and spinach on the roof of a campus building at Boston University.

from Energy & Green Tech News - Energy Sciences News, Green Tech, Energy, Energy Science https://ift.tt/O0INcsQ

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