http://news.bbc.co.uk/2/hi/science/nature/4506848.stmUN climate talks enter key phase
Environmental activists have called for action on global warming
Environment ministers from across the world are to discuss climate change policy as a major UN conference in Montreal moves into its final phase.
It follows 10 days of talks by officials on how to meet the Kyoto targets and where to go next.
The ministers will attempt to finalise a deal on future global climate policy.
The US has so far blocked moves towards limits on carbon emissions after Kyoto expires in 2012, despite a call by one in four US senators for it to join in.
..more..