Japans presumptive prime minister is stand by his campaign promises to cut emissions from 1990 levels by 25%. Though he said that his promises were contingent on other countries making similar goals.
The European Union has promised to cut emission by 20% for 1990 levels, and 30% if other countries follow. In the United States, congress is debating over a bill that would cut emissions by 6%.
Some are worried a 25% cut would be too harmful to the economy of Japan, and thousands of jobs would be lost.
There is also concern that the Obama administration will not have time to win congresses support on reduction of carbon emission.