The BBC understands that the Lib Dems are insisting that the Bill should contain a target for carbon reduction in the electricity sector by 2030 but the chancellor insists that there should be no target.
Also, the government could fall short of achieving its subsidy-reduction target, the ratings company said.
"There is no cost-reduction target in the price control, " said Ofgem communications manager Mark Wiltsher.
This week France announced it would miss its deficit-reduction target for the year because of dimming growth prospects.
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Of course, every deficit reduction target is hopelessly tangled up in the many baselines that afflict the budget debate.
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The government has made a commitment to tackle climate change and has set a 3% annual emission reduction target.
All four except Alaska also had the more stringent greenhouse gas reduction target.
In order for IT to hit its budget reduction target, it needed to become transparent and disciplined to a greater degree.
However according to Conservative AM Antoinette Sandbach the report suggests that the 40% reduction target for 2020 will not be met.
The United States House of Representatives recently passed the Waxman-Markey Bill, setting an emissions reduction target and introducing a cap and trade scheme.
The government borrowed much more than expected in October, reducing the chances that the UK will hit its deficit reduction target in 2012-13.
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Mr Osborne insisted the government would stick to its deficit reduction target, "keeping our credit in the bond markets and our interest rates low".
Ms Sandbach argued the delivery of the 3% annual reduction target may only be possible at present by the virtue of the economic downturn.
Arkansas, Iowa, Missouri, Montana, Texas, and Utah do have greenhouse gas pollution reduction plans, and Utah also has the more stringent greenhouse gas reduction target.
That 80% emissions reduction target was based upon the Review.
Late last year, the EU said its emissions have fallen 17.5% since 1990 and were "on track" to meet its 20% reduction target under the Kyoto agreement by 2020.
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But he said that the US would not be in a position to meet the European Union demands to set a carbon reduction target of between 25 and 40% by 2020.
The deal also included a simple but powerful mechanism to ensure that the committee met its deficit-reduction target: If it didn't, the debt limit would not be increased again in a few months.
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To hit the rest of our deficit reduction target, we should do what leaders in both parties have already suggested, and save hundreds of billions of dollars by getting rid of tax loopholes and deductions for the well-off and the well-connected.
The legislation also increases the deficit reduction target for the Joint Committee by the amount of the cost of the jobs package and specifies that, if the Committee reaches that higher target, then their measures would replace and turn off the specific offsets in this legislation.
He is open to serious, realistic, concrete proposals about how we can get from here to there when we talk about building a balanced package that achieves the kind of deficit reduction target that he set, and that the Simpson-Bowles commission set, and that others have set.
It also said "great uncertainty" remained over the planned transition at the end of the year from Cert (Carbon Emission Reduction Target) to the UK government's "Green Deal" - a scheme which aims to improve the energy efficiency of homes by eliminating the need for householders to pay upfront for efficiency measures.
One week prior to the summit, Jairam Ramesh, member and minister of state for environment and forests, told India's Parliament that the country should plan to reduce the ratio of pollution to production by 20% to 25% compared with 2005 levels, but like China, not accept a legally binding emissions reduction target.
Ministers are now likely to set a new target of a further reduction of at least 40% by 2010.
However, biodiversity and ecosystem services are declining at an unprecedented rate and the world failed to reach the Millennium Development Goal (MDG) target of a significant reduction in the rate of biodiversity loss by 2010.
Even when cost-reduction is a target, the plans for realising it are often worryingly sketchy.
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Two years ago, Tony Blair backed a target of a 40% reduction in road deaths and serious injuries by 2010.
The Ministry of Justice said the figures indicated the government would be likely to achieve its target of a 5% reduction in re-offending.
The organisation said the ambitious target of a 42% reduction in the 1990 levels of emissions linked to climate change would need some significant action.
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