An iceberg floats through the water on July 20, 2013 in Ilulissat, Greenland
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UN 'certain' of climate change despite warming pause

23 September 2013 Last updated at 21:04 BST

Scientists have said they are certain that greenhouse gases from human activities are heating the planet, despite a global pause in rising temperatures.

The UN will deliver its latest report on the state of the climate later this week in Stockholm, Sweden.

David Shukman reports.