United Nations Secretary General, António Guterres, has announced that half of humanity is now in a danger zone threatened by floods, droughts, hurricanes, forest fires… No nation is safe and yet, nothing in our behaviour changes.

While increasingly deadly heatwaves assault the world’s cities, we continue to feed our dependence on fossil fuels. New roads and motorized traffic routes continue to be planned and there is no political will to slow or reverse the man-made global climate breakdown.

Proactively making room for more trees and plants is a simple, common-sense way to combat the stifling heat of our urban centres. Vegetation acts like the lungs of a city and creates natural shade and coolness : a planted roof or green space reduces the surrounding temperature by 5 degrees.

We believe it is within the power of all citizens to act today, at whatever scale they can. Whether through acts of artivism to raise urgent awareness among the public and the authorities, or through local actions of planting more vegetation to fight the concrete, we can all do something meaningfully hopeful. Not tomorrow, but today.

– Dan Acher, Frédéric Favre, Yannis La Macchia, Claude Marthaler

What this tree could have been :

English name – Italian Alder
Latin name – Alnus cordata
Mature height – up to 15m
Mature width – up to 8m
Pyramidal shape, heart-shaped deciduous leaves. Withstands drought, provides food for birds.