Japan is considering raising its 2030 greenhouse gas emission reduction target to 25% compared to a previous 20% plan, national media reported Friday, although the base year remains unclear.

The Japanese government has been widely criticised after local media earlier this month reported it planned to pledge a 20% cut below 2005 or 2013 levels by 2013.

In a compromise between the Ministry of Environment and the Ministry of Economy, Trade and Industry, officials now plan to raise the target to 25%, the Asahi Shimbun reported Friday.

The adjusted target is partly a result of international pressure and would come on the back of a proposal released Thursday by a government advisory group suggesting Japan aim for 22-24% of its electricity to be generated from renewable sources in 2030.

The panel said nuclear power should generate around 20-22% of Japan’s electricity in 2030, Nikkei reported.

A 25% reduction target, especially if compared to 2013 levels when Japan’s emissions surged, would still be well below what most observers say is the nation’s fair share of international efforts to stave off climate change.

UK Climate Change Minister Ed Davey last month wrote several Japanese ministers, urging them to set a 40% target.

Japan is expected to unveil its INDC in June.

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