**Coline Jaworski**  
**Independent researcher and expert in agroecology**



 

 

 



A healthy and diversified diet relies directly on the biodiversity that underpins agricultural systems. Microbial diversity in the soil provides fertility and soil structure, ensures water and nutrients are available, protects against pathogens, and improves the nutritional qualities of crops. Similarly, pollinizing insects ensure the production and nutritional qualities of countless crops, while the natural enemies of bio-aggressors (pathogens, herbivorous insects, weeds) limit yield losses and reduce the need for pesticides, ensuring healthier food crops.   
Present-day intensive farming is no longer viable as it leads to soil degradation and biodiversity decline. Agroecological transition to farming systems based on and regenerating the natural world is needed urgently in response to the challenges of climate change and to ensure food sovereignty, vital for human health. Restoring ecological functions involves reducing how much the soil is worked, diversifying crops, and maintaining semi-natural habitats. These are the mechanisms that make it possible to combine productivity with stable harvests in the face of climate uncertainty, while maintaining food quality and preserving the environment.



 

 

 



 

 

   ![première page article 1](/sites/g/files/dvc2551/files/styles/default/public/image/2026/08/couv%20pdf-02.png.webp?itok=jJ9KBN5q)   



[**Read the entire article**](https://www.institut.veolia.org/sites/g/files/dvc2551/files/document/2026/08/01_VEOLIA_FACTS_28_2026_GB_WEB_C.Jaworski.pdf)