UN climate summit seeks clarity
This year's round of UN climate talks are opening in Poland with nations attempting to set the terms of a new deal on all aspects of climate change.
The talks, in the city of Poznan, mark the halfway point in a two-year process agreed at last year's UN conference.
The meeting will not produce a new deal but is likely to clarify what countries are looking for on issues such as emission cuts and forest protection.
The US will be represented by officials of the outgoing Bush administration.
The two-year process which began at last December's talks in Bali is designed to conclude in a year's time with an agreement that can enter force in 2012 when the current emission cuts under the Kyoto Protocol expire.
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