De Boer will leave the UNFCCC in July to take up a role at KPMG
Prime minister says he has a plan that will bolster chances of global climate change deal over next few months
Yvo de Boer closes Bonn talks with stark warning that the current pace of the Copenhagen negotiations remains far too slow
New UN figures show current targets for rich nations fall well short of those proposed by climate scientists
The gap between rich nations and emerging economies over carbon emissions targets is beginning to look unbridgeable
UN's top climate change official warns negotiators are running out of time to resolve rows over targets and clean tech financing
Developing nations will be expected to commit to action on energy efficiency and renewables, says US delegation in Bonn
Report argues carbon offset mechanisms are beyond reform and should be scrapped
US lead negotiator strikes conciliatory tone at opening of climate talks, but warns there is no "magic wand"