Australia
Country in Oceania
In brief
Air pollution PM2.5, µg/m³: 6.4 (2023). World rank 20 of 200 (1 = best); in Oceania, 12 of 17. CO₂ emissions, tonnes per person: 14.1 (2024). World rank 192 of 203 (1 = best); in Oceania, 17 of 19. All greenhouse gases, tonnes CO₂e per person: 21.8 (2024). World rank 193 of 203 (1 = best); in Oceania, 18 of 19. From 2015 to 2025: protected areas 28.7% → 33.5%.