THE phrase “concrete jungle” might have been coined for São Paulo. Brazil’s megalopolis has 2.6 square metres (28 square feet) of green space for each of its 11m inhabitants, a tenth as much as New York and a fifth of what the World Health Organisation recommends. As with wealth, greenery is unequally distributed. Rich central districts, many with jardim (garden) in their names, have more trees than residents. In Itaim Paulista, on the poor eastern periphery, there is one for every 17 people.
João Doria, the mayor since January, wants more foliage. In March he inaugurated the first section of what will become the world’s biggest “green corridor”. The “vertical gardens”, sprouting from wall-mounted pockets made from felt, will stretch for 3.5km (2.2 miles) down Avenida 23 de Maio, a congested ten-lane road in the city’s centre. They are expected to absorb as much carbon dioxide as 3,300 trees.
In elections last year Mr Doria, a marketing tycoon, defeated a left-wing mayor, Fernando Haddad, who was fond of cycle lanes but did little to make the city greener. Under...Continue reading
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