The UN Climate Change Conference ended Saturday with a legally non-binding agreement, the Copenhagen Accord.

The accord upheld the principle of "common but differentiated responsibilities" set by the UN Framework Convention on Climate Change and the Kyoto Protocol, made arrangements for developed countries' compulsory emissions cuts and developing countries' voluntary mitigation actions, and included wide consensus on the key issues of long-term global emissions reduction objectives, funding and technology support, and transparency.

The accord said the increase in global temperature should be below 2 degrees Celsius, and developed countries should commit to a goal of mobilizing jointly 100 billion U.S. dollars a year by 2020 to address the needs of developing countries.

The conference was originally scheduled to end Friday, when more than 100 state leaders gathered in Copenhagen to try to reach a legally binding agreement.

The Copenhagen Accord now is open for signing.