Australia pledged to cut greenhouse gas emissions by 5 to 15 percent by 2020 versus 2000 levels, with the higher target to be met only if other countries agree on tough new targets to fight climate change by the end of next year, the government announced on December 15.

The lowest target of 5 percent would apply if the United Nations fails to reach a binding agreement at Copenhagen next year committing developing and developed countries to making deep cuts in global emissions.

“Australia’s commitment of a 5-to-15 percent reduction is a serious and credible commitment to the global action required and is realistically attainable in the current circumstance,” a government statement said.

The private sector has called the low target realistic, however environmental groups have critisized the government for not aiming for 25-40 percent reductions.