Boeri is the brain behind the sustainable residential building project Vertical Forests, the first of which was built in Milan, hosting thousands of trees and plants on a tower block.
He has championed the idea of incorporating greenery into urban planning to tackle problems caused by urbanization, including air pollution, and a larger green 'city' will be built near the Chinese city of Liuzhou in the next few years.
Now Boeri has said he believes plants could have a role to play in fighting terrorism in Europe.
“Terrorists want to lock us in our homes, hoping to force us to give up living in the collective places and public spaces of our cities,” Boeri said in a statement two days after the fatal Barcelona terror attacks last Friday.
While the architect acknowledged that traditional measures to fight terrorism are still needed, he explained how urban public architecture could do more.
“Instead of distorting the most vital and open spaces of our cities by filling them with concrete barriers and modular plastic security devices (or simple flower boxes),” the green forest founder says in his post “we should oppose the instinct of death brought by these bestial people with calm presence of plants – in particular oaks.”