Japan carbon profile

Japan emits roughly 1.00 Gt of CO₂ per year — about 2.7% of global emissions, ranking #5 worldwide. At 8.0 tonnes per person (#22 per capita), its footprint is above the global average of ~4.7 t.

Emissions have declined steadily over the past five years (-12%) and fallen sharply over the decade (-20%). The sustained downward trajectory suggests structural decarbonization rather than a one-off dip.

Renewables supply about 22% of electricity. Electricity remains dominated by fossil fuels, making the power sector the biggest decarbonization lever.

If the current pace holds, Japan could cut another ~12% by 2030. Accelerating renewable build-out is the highest-impact opportunity.