Indonesia officially submitted its emission reduction target to the United Nations on Sunday amid doubts over the possibility of countries to reach an ambitious deal this year, a paper said in Jakarta Monday.

The Southeast Asia's largest economy has pledged to cut its emission by 26 percent in 2020, despite it plans to boost economic growth.

President Susilo Bambang Yudhoyono said last month that the country could extend the target to 41 percent in the next 10 years should any foreign assistance involve.

"Everything we promised in the report will be carried out," head of the National Council on Climate Change, Rachmat Witoelar was quoted by the Jakarta Post as saying.

A non-binding Copenhagen accord set a January 31 deadline for countries to confirm their participation in a deal brokered by the U.S. in last month's climate talks in Denmark.

The U.S., which rejected binding targets under the Kyoto Protocol, has also submitted its official report to cut 17 percent of emissions by 2020 from 2005 levels.

With the 26 percent commitment, Indonesia has to allocate 83 trillion rupiah (some 8.9 billion U.S) to cut 767 million metric tons of carbon dioxide (CO2).