Faced with the needs of cities to green their territory, the Rennes start-up Kermap offers precise diagnoses.
The company is based on photos taken by satellites to give a postcard of the vegetation of a territory.
The fight against global warming, especially in urban areas, will involve more nature in the city.
"The greenest city in France". This is a title that the mayors of all French municipalities undoubtedly dream of. Confronted with global warming, the communities of the hexagon are trying to "green" while densifying their city centers so as not to eat away at agricultural land. An equation not easy to achieve which often involves a first crucial step: the diagnosis. A complex operation as it incorporates a large number of parameters. To facilitate the task of elected officials, the start-up Kermap has developed an ingenious system. Based on the images taken from space, the Rennes company is able to draw a very precise picture of the green spaces that cover a city, a metropolis, a department, or even a region.
In these pictures taken nearly 800 kilometers from Earth by Airbus satellites, the images reveal stunning details. “You can easily see the trees, the pedestrian crossings. The images are very precise, ”explains Antoine Lefebvre. The CEO of Kermap knows what he's talking about. This doctoral student worked for a long time for the National Center for Space Studies (CNES). It was in Lille, where he met his partner Nicolas Beaugendre, that the idea of creating a start-up germinated. “We felt that the cities needed information on the status of their revegetation. The question becomes central, we have seen it in the municipal elections, but the diagnosis is difficult to make. On the ground, municipalities cannot explore private land. Satellite images provide strategic data, ”explains Nicolas Beaugendre.
🌡️With + 1.66 ° C so far in 2021, # Montreal is suffering the biggest heatstroke of the year among the 24 #Klover cities.
🌳Faced with # global warming, Montreal is betting on #NatureEnVille.
To find out more about its green heritage and its actions:
👉https: //t.co/cgocUNS9a0 pic.twitter.com/otlDbaTFiW
- KERMAP (@kermap_info) November 10, 2021
To show its know-how, Kermap published in 2019 a barometer of the greenest French cities. In the metropolis category, it was Nice which enjoyed with 26% of its surface which is planted with trees, more than twice as much as Bordeaux. Rennes was ranked 5th, just ahead of Paris. “It often depends on the story. Older towns were not designed to be planted with trees, ”explains Antoine Lefebvre. The Rennes start-up, which now employs nearly 20 people, has just unveiled a new tool called Klover, capable of comparing the presence of nature in 24 metropolises around the world. A barometer which should make it possible to establish a clear observation of the impact of climate change in very different cities such as Auckland, Zurich, New Delhi or New York.“We are not here to say that trees should be planted here or there. But we provide a simple solution to cities by showing them the impact of global warming on their territory, ”continues Nicolas Beaugendre. In Montreal, the year 2021 was marked by a temperature difference of +1.68 degrees. Even though it is one of the greenest metropolises in the world.
The impact of vegetation in the fight against global warming is well established.
In Rennes, temperature differences of up to six degrees were recorded between the heart of the mineral city and the wild meadows of Saint-Martin.
To better fight, the Breton metropolis called on the services of Kermap.
Since its creation in 2017, the start-up has attracted more and more territories, especially in France.
She would now like to convince cities around the world to trust her.
Because everyone is concerned.
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