David Miliband is clearly one frustrated UK environment secretary today - as well as an exhausted one.
In his final Guardian Unlimited podcast from Nairobi, Mr Miliband reports on the struggle to persuade the entire international community to make a continuing commitment to save the planet from further destruction.
The Stern report has finally made a business case and its contents were widely discussed at the UN summit. Yet it did not seem enough to persuade everyone.
Over the past two weeks, there has been no shortage of discussion. But when it comes down to it, the talks have yet to secure the necessary determination to make it happen after the Kyoto agreement ends, in 2012.
Some players within the international community are bogged down on the detail of how much each country will be expected to contribute. At the end of the summit, the question remains: should developing countries play as big a part in reaching a climate change solution as their richer counterparts?
The UN's secretary general, Kofi Annan, blamed the "frightening lack of leadership" for hampering the fight against global warming. Mr Miliband, however, says the problem is the "gap" between what the science is telling us and what politicians and political institutions feel able to deliver.
At this rate, will the 2009 deadline for a post-2012 agreement be met?
Listen to today's podcast here
Listen to Thursday's podcast here
Listen to Wednesday's podcast here
Listen to Tuesday's podcasthere
Listen to Monday's podcast here
