Monday, April 1, 2019

Here’s how many trees are required to cool a city street

Shady street

Sweaty, sticky summer will be here before ya know it. Does your city block have enough trees on it to stay cool?

Via Popular Science.

Pavement is an urbanite’s worst enemy in the summer. It traps the sun’s boiling rays in two ways: first, by absorbing the incoming sunshine, trapping heat and boosting the daytime temperature, and then releasing that heat as darkness falls, preventing colder nighttime temps from cooling things off. This is the urban heat island effect. It’s a longstanding problem, especially in larger cities with more asphalt, but it’s becoming increasingly problematic as global warming heats the planet even more.

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