In 2023, methane emissions in Japan stood at 26.80 million metric tons of CO2 equivalent. Forecast data projects a gradual decline through 2028, with values decreasing from 26.61 million metric tons in 2024 to 25.73 million metric tons by 2028. The year-on-year decrease is relatively consistent, with a compound annual growth rate (CAGR) of approximately -1% over the five-year period from 2024 to 2028, indicating a steady reduction.
Future trends to watch for include potential impacts from Japan's ongoing energy transition, technological innovations in reducing emissions, and international environmental policies which could further influence methane emission trends.
