FACTBOX-Climate negotiating positions of top emitters

Oct 30 (Reuters) - Following are the negotiating positions of top greenhouse gas emitters in the run-up to a U.N. meeting in Copenhagen in December where a new pact for combating climate change is due to be agreed:

1) CHINA (annual emissions: 6.8 billion tonnes, 5.5 tonnes per capita)

* Emissions - President Hu Jintao promised on Sept. 22 that China would cut its carbon dioxide emissions per dollar of economic output by a "notable margin" by 2020 compared to 2005. [ID:nN22195458]. The "carbon intensity" goal is the first measurable curb on national emissions for China. Hu reiterated a promise that China would try to raise the share of non-fossil fuels in primary energy consumption to 15 percent by 2020.

* Demands - China wants developed nations to cut their greenhouse gas emissions by at least 40 percent below 1990 levels by 2020 and to give far more aid and green technology.

2) UNITED STATES (6.4 billion tonnes, 21.2 tonnes per capita)

* Emissions - President Barack Obama wants to cut U.S. emissions back to 1990 levels by 2020 and by 80 percent below 1990 levels by 2050. He told the United Nations on Sept. 23 that the days when the United States "dragged its feet" on climate change were over. [ID:nN23275858]

Democratic U.S. senators will try to push a bill through the Environment and Public Works Committee as early as the first week of November. The bill would cut emissions by 20 percent from 2005 levels by 2020 -- about 7 percent below 1990 levels by 2020. [ID:nN29370923]. It would still face a long road to become law.

* Finance - The United States says a "dramatic increase" is needed in funds to help developing nations.

* Demands - "We cannot meet this challenge unless all the largest emitters of greenhouse gas pollution act together," Obama said. [ID:nLN445414]