Japan's Ministry of the Environment basically decided on the 27th that in the 2022 tax system revision, it will require the full introduction of a "carbon tax" based on carbon dioxide (CO2) emissions aimed at strengthening global warming countermeasures. This is intended to be a powerful means to achieve a decarbonized society, the signature policy proposed by the Yoshihide Suga administration. The Ministry of Economy, Trade and Industry and the business community have shown a cautious attitude as they are wary of the increased burden, and will coordinate comprehensively on whether to impose taxes and the level of collection by the end of the year. The Ministry of Environment presented the outline of the proposal at a closed meeting of the Liberal Democratic Party group. It states for the first time that it will take measures to promote "carbon pricing" that taxes CO2 to promote emission reductions, and "promote professional and technical discussions while also considering the burden method" on carbon tax requirements, one of the representative methods. However, no specific tax items, tax rates and other system designs were given, which will be discussed in the future. In 2012, Japan introduced a "global warming countertax" as a type of carbon tax, which is mainly levied on companies using fossil fuels such as oil and coal. Compared with Europe, it is accused of low tax rates and poor emission reduction effects. The comprehensive introduction of carbon taxes may expand this. However, Japan already has a petroleum and coal tax and a volatile oil tax on gasoline, etc., and there are strong opinions that the overall adjustment should be unified. The coordination work is also expected to have twists and turns. Prime Minister Yoshihide Suga in December last year instructed the Ministry of the Environment and the Ministry of Economy, Trade and Industry to explore the introduction of carbon pricing. Although the methods have been discussed through separate expert meetings, the Ministry of the Environment, which wants to focus on carbon tax, and the Ministry of Economy, Trade and Industry, which is exploring options that lighten the burden on companies, are not in sync. An official from the Ministry of the Environment said: “Finally,