The International Energy Agency (IEA) said that subsidies for fossil fuels are overpowering efforts to curb pollution.

The agency on Monday in its Energy and Climate Change report said tax-breaks, subsidized fuel prices and other government support amount to an incentive to pollute worth $115 per metric tons of carbon-dioxide.

According to the Paris-based group, this data compares with an average $7 cost to buy emission permits in carbon markets.

As Europe has also taken a step forward to boost its emissions price nations including India and Indonesia are cutting subsidies. IEA said countries need to make more ambitious pledges to limit heat- trapping gases.

Fossil-fuel support systems represent 13% of global emissions, compared with the 11% governed by carbon markets, according to the group.

IEA said, "Test of success of climate talks in Paris will be conviction it conveys that governments are determined to act to full extent necessary to achieve goal of keeping rise in temperatures below 2 degrees Celsius compared with a pre-industrial average".

Carbon dioxide emissions from energy use rose 0.5% to a record 35.5 billion tons last year, according to BP Plc data.

IEA further said that growth was still the slowest since a drop in 2009, as Chinese coal consumption held steady. Under climate pledges delivered so far, the world's estimated remaining spend for curbing emissions will be consumed by about 2040, the IEA said.

Energy-related greenhouse gases will probably continue to rise after 2030 under a scenario that covers climate pledges made so far, said the adviser to 29 nations from the US to Turkey. The global economy will probably expand by 88% from 2013 to 2030 and energy-related carbon dioxide emissions by 8%, according to the IEA.