Japan’s total greenhouse gas emissions in FY2012 (preliminary figures) were 1,341 Mt CO2 eq. The emissions increased by 6.3 % (79.8 Mt CO2 eq.) compared to those of the base year under the Kyoto Protocol (FY1990 for CO2, CH4, N2O, and calendar year (CY) 1995 for HFCs, PFCs, SF6).
Total emissions increased by 2.5% (33.2 Mt CO2 eq.) when compared to those of FY2011 (1,308 Mt CO2eq.), mainly due to an increase in CO2 emissions from power generation. The main driver for the rise in emissions in FY2012 as compared to FY2011 is the increased fossil fuel consumption in response to the expansion of thermal power generation since the Great East Japan Earthquake, despite the decrease in manufacturing production and the widespread implementation of power saving measures across each sector.
1 Concerning the estimation of the preliminary figures: this estimation of greenhouse gas emissions is based on annual data compiled from statistics from a variety of sources - however, some of these data are not yet available. For such data - for which FY2012 values are not available - the FY2011 values were used to estimate the preliminary figures. Therefore, there may be some differences in the preliminary figures reported here when compared to the final figures to be reported in April 2014.
2 Concerning the increase in actual total emissions compared to the base year: the value “6.3% increase” does not take into account either the promotion of forest carbon sink measures or the Kyoto mechanisms credits.
3 Forest carbon sink measures target: about 3.8% (47.67Mt CO2/yr) of the base year emissions according to the Kyoto Protocol Target Achievement Plan.
4 Kyoto mechanisms credits:
Acquired by the Government: Total credits that were contracted as of FY2012 year-end through the Kyoto Mechanisms Credit Acquisition Program (97.528Mt).
Acquired by the private sector: The amount of credits that were acquired by the Federation of Electric Power Companies of Japan (according to the Environmental Action Plan by the Japanese Electric Utility Industry [FY2009 to FY2013])
5 Total emissions and removals for the Kyoto Protocol target will be finalized after the technical review process under the Kyoto Protocol and the Convention to be conducted in FY2014. Also, the Kyoto mechanisms credits will be finalized after the true-up period for the first commitment period (expected to be completed in the second half of 2015 or later).
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