Cambodia faces significant environmental challenges including deforestation, biodiversity loss, and climate vulnerabilities like floods and droughts. The country has committed to ambitious GHG reduction targets in its 2025 NDC 3.0, aiming for 55% reduction by 2035 with conditional support, while advancing renewable energy to 72% and halving deforestation by 2030. Air quality remains stable but data limited; high hazard exposure affects 90% of population.