"When the scientists aboard the International Space Station direct their
thermal camera at Los Angeles, standing out from the sweltering red and orange
blob is a crescent of cool, blueish white deep in the San Fernando Valley.
Greg Spotts, Chief Sustainability Officer of the City’s Bureau of Street
Services (Streets LA), is proud of these wintry-looking pixels — not many
people can say their work is visible from space. In this area, the center of
the Valley’s Winnetka neighborhood, the pavement has been painted with a
special reflective coating. “The locations near the cool pavement were, on
average, two degrees Fahrenheit cooler than the surrounding area,” Spotts says.
“Previously, our measurements were focused on measuring the surface temperature
of the roadway itself, which showed a difference of 10 to 15 degrees Fahrenheit
on hot days,” he adds. The satellite thermal camera is significant, however,
because it shows that the special cooling pavement not only lowers the
temperature on the road, but “produces a cooler neighborhood” in general."
*** Xanni ***
Chief Scientist, Xanadu
Partner, Glass Wings
Manager, Serious Cybernetics