via ScienceAlert
Titanium dioxide breaks down smog particles in the air, and students in the US have shown that in one year, one roof coated in it can break down the smog from a car that’s driven 17,000 km(10,500 miles). And every day, 21 tonnes of smog could be eliminated by one million treated roofs.
http://txchnologist.com/post/88500055810/students-show-common-compound-breaks-down-air-pollution
Kawai Tam, Chun-Yu “Jimmy” Liang, Jessica Moncayo, Edwin Rodriguez, Carlos Espinoza, Kelly McCoy, David Cocker and Louis Lancaster. From UC Riverside. Not just “Engineering students”.
This is important.
renewable
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“Magic windows. Morning sun turns window frost to water which runs down the glass, drains across the 90# roofing into gutters, then into the pail. The water is then put back into the plant bed and the bucket awaits another cold night.”
