CityTree is the new wall of the start-up Green City Solutions, thanks to solar panels, this 4 meters high wall and 3 wide uses the foam to purify the air by photosynthesis and absorbs 240 tons of gas, Dust per year. The equivalent of 275 trees that purifies the air within a radius of 50 m around its installation.
Using rainwater, its solar panels and sensors to regulate its humidity and temperature, these foam walls are already present in 20 cities in the world. Its next destination: India. Countries where, because of its overpopulation, the air of some cities is in the list of the most polluted in the world.
The city of Liuhzou in China will be completely "green" in 2020 and will see all its buildings covered with greenery. The initiator of this project will be Stephano Boeri, the architect who is not on his first try since he designed green towers in China and Milan.
You can check the article about green city in china : https://steemit.com/technology/@goldensun42/in-china-a-forest-city-will-fight-air-pollution-with-trees
