Summary: Japan’s greenhouse gas emissions fell to record low in FY2024 Japan’s greenhouse gas emissions dropped 1.9% in fiscal year 2024 (ending March 2025), reaching 1.046 billion metric tons of CO₂ equivalent — the lowest level since records began in 1990/91 and the third consecutive annual decline. By sector, industrial CO₂ emissions fell 2.5% and transport dropped 1.6%, while the commercial sector edged up 0.2% and households saw a 0.7% decline. Japan is targeting a 46% reduction from 2013 levels by 2030; the FY2024 figure represents a 24.9% reduction so far. The decline reflects growing contributions from clean energy: renewables accounted for 23.1% of electricity generation and nuclear 9.4%, while thermal power’s share fell to 67.5%. Emissions had surged following the 2011 Fukushima disaster, peaking at 1.394 billion tons in fiscal 2013, before trending downward as nuclear reactors were gradually restarted and renewable energy expanded.