Biodiversity in Île-de-France: A Sharp and Accelerating Ecological Shift
20 Apr 2026
As climate change accelerates, the Regional Biodiversity Agency (ARB) is sounding the alarm: natural ecosystems in the Paris region are no longer merely reacting—they are undergoing a radical transformation. Between the decline of specialist species and the massive arrival of southern fauna, the region's ecological balance is shifting, demanding an urgent overhaul of territorial planning strategies.