The new target approved by the Cabinet today calls for reducing emissions by 3.8 per cent from their 2005 level by 2020. The revision was necessary because the earlier goal of a 25 per cent reduction from the 1990 level was unrealistic, the chief government spokesman, Yoshihide Suga, told reporters in Tokyo.
He called that target "completely baseless."
The new target represents a 3 per cent increase over 1990 emissions. Given Japan's status as the world's third largest economy and fifth largest source of greenhouse gas emissions, the decision to back away from the more ambitious target could be a significant setback for efforts to reach a new agreement at world climate talks now underway in Warsaw, Poland.
The resulting shift back toward reliance on coal, oil and gas for power, and use of diesel generators, has hindered further progress.
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Emissions in the fiscal year that ended in March were up 2.8 per cent from the year before, and at 1.207 billion tons, the second highest after a record 1.218 billion tons in fiscal 2007.
"This target will be reviewed in the future and we hope we will come up with a new and good one," he said.
Environment Minister Nobuteru Ishihara plans to explain Japan's stance and seek understanding from other participants at the talks next week. Tokyo also is planning to provide USD 16 billion in aid for emissions reductions in developing countries and to commit USD 110 billion to research on energy and the environment.