Los Angeles is taking the climate change fight to the streets with plans to cover 1,500 city blocks with cool pavement, a heat-reflecting asphalt coating, over the next 10 years.
Juan Reyes, left, and Devin Vestal apply a cool pavement material to a parking lot in downtown Los Angeles. City officials hope the pavement will help cool the city and mitigate the effects of climate change.
The Bureau of Street Services began spreading so-called cool pavement in the summer of 2015, starting with a parking lot at the Balboa Sports Complex in Encino. Over the last two years, crews have installed it on 15 residential blocks scattered from Northridge to Harbor City. Extreme heat is one of climate change’s most life-threatening impacts, and it already causes more deaths in the United States each year than floods, storms and lightning combined. Climate change compounds those risks through what’s known as thein which the built environment of cities makes them hotter than their rural surroundings.
Jonathan Parfrey, executive director of the nonprofit Climate Resolve, uses an infrared thermometer to measure the surface temperature of traditional asphalt, left, and asphalt treated with a reflective cool-pavement coating, right. Yet even with the expansion, the scale of L.A.’s cool-pavement project is relatively small. The 1,500 blocks the mayor wants to convert represent only about 2% of the approximately 70,000 city blocks in Los Angeles.
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