China has proposed that developed countries should cut greenhouse gas emissions by 25 to 40 per cent by 2020 from 1990 levels.
A Chinese delegation proffered the figure at the 13th conference of the UN Framework Convention on Climate Change, underway in Bali, Indonesia.
China wants a working group to include developing countries to forge a new framework to succeed the Kyoto protocol.
The world's second biggest emitter of greenhouse gases is calling on developed nations to provide financial and technological help.
As a sign China is looking to alternative fuels instead of coal-fired power plants and oil, it has launched eight biomass plants - with a total installed capacity of 200,000 kilowatts - in five grain-producing provinces to cut CO2 emissions in electricity generation.
The plants are expected to generate 1.4 billion kilowatt hours of electricity.
China expects installed capacity of bio-energy electricity to reach 5.5 million kilowatts by 2010. The country is expected to overtake the US to become the world's biggest emitter in 2007, according to the International Energy Agency.
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