To combat climate change and pollution, Madrid is building a green wall around the city. A 75-kilometre urban forest with nearly half a million new trees.
“What we want to do is to improve the air quality in the whole city,” says Mariano Fuentes, Madrid's councillor for the environment and urban development. “To fight the 'heat island' effect that is happening inside the city, to absorb the greenhouse emissions generated by the city, and to connect all the existing forest masses that already exist around the city.”
The project will also make use of derelict sites lying between roads and buildings to help absorb 175,000 tons of CO2 per year.
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