![]() WELLS: Cities are trying other things, too, like planting trees and making roofs more reflective. And then it's kind of a really successful implementation of an intervention. And so, you know, when they're walking, they will feel cooler, and their pet's paws will be cooler. TURNER: Maybe people are at work during the day, and in the evening time they want to go out and walk their dogs. Turner says it might not be great for a school where kids are out playing in the middle of the day, but in a residential neighborhood. ![]() So whether or not cool pavements work depend on when they're used. WELLS: That means a person walking at midday might actually feel hotter. TURNER: It does reradiate a certain amount of heat back at any object that is directly above it in the midday hours, from about 11 to 1. But she says it's not as effective at curbing heat at other times. The street isn't giving off that oven effect because it didn't absorb as much heat during the day. WELLS: She says that works best in the late afternoon. KELLY TURNER: They work at doing a specific job, which is to curtail the amount of heat that's absorbed by asphalt. She's an urban planning and geography professor at UCLA. WELLS: Since these streets were first put in, researchers have been trying to quantify just how much they do help. WELLS: Some of his neighbors, like Carolyn Anderson, aren't so sure.ĬAROLYN ANDERSON: I don't think it makes a big difference in terms of temperature. Still hot, but, like, I think it makes a little bit of a difference. And I was walking, and it was like - it felt like a wave, almost, you hit. RYAN SOLOMON: I thought it was a silly idea until they did one half of the street before they did the other half. WELLS: Ryan Solomon, who lives on a cool street in West LA that was painted last year, says it helps. WELLS: Since the city started this program, they've added hundreds of miles of what they call cool pavement. ![]() PARFREY: If you brought a laser thermometer out on that street, you would see a distinct difference between traditional asphalt and the newly applied material. But overall, it's not as light as you'd think. He says the color varies street to street because there are a couple different paints they use. WELLS: Jonathan Parfrey directs a nonprofit called Climate Resolve that has partnered with the city on this project. JONATHAN PARFREY: So the color doesn't look that different. Since 2017, the city of Los Angeles has been trying to fight that effect by painting roads with a more reflective paint to bounce the sun's energy back into space. Unlike forests or water, buildings and roads absorb heat from the sun and radiate it back out, amplifying the heat. Here's Caleigh Wells from member station KCRW.ĬALEIGH WELLS, BYLINE: When a heat wave hits, cities are at a big disadvantage. And that is why Los Angeles is painting the streets. Your surroundings affect the temperature, which matters as climate change intensifies. Standing by a brick wall in the sun is hot. Standing on grass feels cooler than an asphalt parking lot. You can notice many examples of that as you move around. The connector is the standard Universal Type, Compatible with most major ballast brands.In the middle of a hot day yesterday, I walked to the end of a dead-end street, and I could feel a cool breeze coming through the woods at the end. The reflector comes with our industrial 15' lamp cord and socket which is compatible with all size HPS/MH bulbs. It greatly reduces the heat going to your grow. Only the heated air from the bulb is removed. This allows you to connect duct work to vent air from outside your grow, pass the air over the bulb, and vent the air back outside your grow room. The tempered glass tube is very durable and there are twin 6" aluminium flanges on both sides of the glass tube. This reflector was manufactured using polished and textured German Aluminium which has a reflectivity rating of 95%. When comparing competitors units, make sure to check the length, many 19" units are being sold that use cheaper components and glass. ![]() This is one of the longest Cool Tubes units on the market. It is 24" long and the wings can be adjusted to perfectly fit the pattern you are looking for. This 6" Cool Tube Reflector can be mounted vertically or horizontally with or without the insert and wing. Vertical and Horizontal mounting options.Compatible with Magnetic and Digital Ballasts.Maximum airflow over bulb, minimising heat in growing area.Designed to exact standards for Indoor Gardening.Highest quality German Aluminium (95% Reflective).6" diameter integrated fittings on both ends. ![]()
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