Vietnam faces significant environmental challenges due to rapid development and climate vulnerability. Average temperatures have risen faster than global averages, with irregular rainfall and more frequent extreme weather. Current policies are rated critically insufficient for 1.5°C goals, projecting emissions of 686–722 MtCO2e by 2030. Coastal areas experience sea level rise, increasing flood risks. Sustainability efforts include renewable energy expansion and adaptation plans, but air quality remains stable with N/A metrics, and data gaps persist in recycling and renewables.