As Benny Peiser informed us,
Now, there is no real problem with Japan because the Japanese have been servile for 60 years and maybe even during the war. They will effectively pay an additional USD 100 tax per person and everything is fine. But I assure you that if such a difficulty occurred in a country whose citizens have a somewhat higher self-confidence, it could be a real problem. Well, former Japanese politians (and their voters) are the only ones to be blamed for the Japanese signatures under the Kyoto protocol.
It has always been very clear that the emissions wouldn't be dropping and any decrease would be linked to a decrease of the GDP. Only post-socialist countries that had a lot of useless heavy industry waiting to be phased out could have benefitted from Kyoto. But the politicians who were signing the protocol were usually thinking about their image rather than the actual economic implications of the treaty.