United Kingdom
Country in Europe
In brief
Air pollution PM2.5, µg/m³: 9.5 (2023). World rank 43 of 200 (1 = best); in Europe, 16 of 43. Forest cover: 13.5% (2024). World rank 149 of 213; in Europe, 38 of 47. Protected areas: 42.1% (2025). World rank 8 of 213 (1 = best); in Europe, 3 of 46. From 2015 to 2025: protected areas 16.6% → 42.1%. Better than all its neighbours (Ireland): protected areas, CO₂ emissions, and all greenhouse gases. Worse than all its neighbours (Ireland): air pollution PM2.5 and water stress.