The reasons for this decline are man-made: artificialisation of soils and ecosystems, overexploitation of renewable natural resources, invasive alien species, pollution, climate change...

All three factors — land-take, intensification and extensification — lead to loss of High Nature Value Farmland and a decline in populations of farmland birds.

global climate challenge, drastic loss of biodiversity, deforestation, soil artificialisation, diseases linked to the environment, but also an increase in global awareness and technological potential to cope with them ;