Political cracks appear on carbon reduction
It's been one of the most remarkable things in British politics for many years: The political consensus, across all the main parties, on the need and the speed at which the UK is to cut its carbon emissions to avoid so called 'dangerous climate change'.
And yet, lurking just beneath the surface, there are MPs who privately either express concern at the cost of going green and how, if other countries don't do the same, it might damage the country's competitiveness; or even voice doubts about man made global warming itself, believing the threat is exaggerated.
That said it still came as a surprise to commentators this week when a prominent member of the Cabinet, the Business Secretary Vince Cable, voiced his concerns that the speed and cost of carbon reductions over the coming years could harm prospects for jobs and growth - concerns that are apparently shared by, among others, the Chancellor George Osborne.
In 2008, three budgets were announced taking the country on a path of carbon reduction to 2023. But the next target that has to be set in the next few days will take the country to 2030.
The government have been told that carbon emissions should be cut by 60% compared to 1990 levels by 2030, by the government's advisory body on climate change.
Lord Turner, who heads this body, met with ministers to try and heal a rift which has pitched Osborne, Cable and others against the Secretary of State for Energy and Climate Change Chris Huhne.
In a leaked letter, Cable wrote that he feared the Energy Secretary's plan relies on securing a cap on emissions trading across Europe that may never materialise. If this were not achieved, the UK would be left cutting carbon emissions unilaterally, which would risk putting industry at a disadvantage.
A decision will be made by the Prime Minister David Cameron on Monday and will be watched very closely to see if the UK's remarkable political consensus remains in place.
Any watering down of the UK's carbon reduction plan, which is one of the toughest in the world, would be seen as a major blow by green campaigners that could have far reaching ramifications around the world.