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Global warming: the challenge of green cities

It offers a pleasant living environment, but not only. In the city, those who study it have discovered that nature is also beneficial for health, for sociability or even allows fight against global warming.

Also read. Report. Angers, a city that always wants more green

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Saint-Serge Park in Angers. © Vincent Michel / West-France

“There is a real awareness that green in the city is useful for the inhabitants”, emphasizes Laurent Bizot, President of the National Union of Landscaping Companies. Originally, however, the city was built without nature, “to protect man from a hostile environment”, recalls Lise Bourdeau-Lepage, researcher at the CNRS. First private before becoming public, its role then oscillated between decorative element and place of sociability. “The health crisis has revealed the sex-appeal of nature in the city »she notes, “before that, we could notice the rise of environmental sensitivity ».

For Jean-Marc Bouillon, landscape designer and founder of Takahé Conseils, nature must now be seen as “ecosystem” et “multifunctional”especially in the face of global warming.

photo"> photo of the rose garden in angers.  © vincent michel / west-france

The Roseraie garden in Angers. © Vincent Michel / West-France

To raise awareness

By 2050, 68% of the world’s population will live in urban areas. However, they represent around 70% of global greenhouse gas emissions, according to UN climate experts. Cities are vital in the fight against global warming for scientists.

photo"> photo of the rose garden in angers.  © vincent michel / west-france

The Roseraie garden in Angers. © Vincent Michel / West-France

For Jean-Marc Bouillon, who considers that 80% of urban land is private, Ecology will go through economic land, even professional, businesses, car parks . Laurent Bizot recalls the importance of ” sensitization “ public.

According to Lise Bourdeau-Lepage, there are inequalities of access to green spaces or questions around the balance of biodiversity. Also, nature “can be a problem, when we put bins along arcades so that people don’t sleep underneath, for example. »

There is also, according to her, the issue of acceptance. Nature, with its share of insects for example, can get in the way. It’s a matter of intensity.

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