Placing sensors on the branches, better planting… Lyon, state-of-the-art laboratory for trees in the city

2023-09-04 07:54:45

It is now one of the coolest places in Lyon. “Under the trees of rue Garibaldi, in the 3rd arrondissement, it was 7.9°C cooler during the heat wave and an average of 4.2°C during the four summer months. » Pierre Athanaze, vice-president of the Metropolis of Lyon, in charge in particular of nature in the city and the management of large metropolitan parks, is not inventing anything. The sensors say so. They were placed on the branches of the existing plane trees on this busy axis in 2020 to study global warming.