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2010 emissions are estimated to have climbed to a record 30.6 Gigatonnes (Gt), whilst 80 percent of projected emissions from the power sector in 2020 are those unlikely to be changed, the energy agency stated.
The last record in 2008 reported CO2 emission in total of 29.three Gt, which followed by a dip in 2009 due to the global monetary recession.
The IEA envisaged 2010 information and potential future emission "a severe setback" to a target of limiting temperature increase to 2 degrees Celsius at the UN climate change talks in Cancun in 2010.
"Our latest estimates are yet another wake-up call ... The world has edged extremely close to the level of emissions that really should not be reached until 2020 if the 2 degree Celsius target is to be attained," stated Fatih Birol, chief economist at the IEA.
To attain the objective of 2 degrees Celsius limitation, "global energy-related emissions in 2020 need to not be greater than 32 Gt. This means that over the next 10 years, emissions ought to rise much less in total than they did between 2009 and 2010," the energy watchdog stated in a press release.
"Given the shrinking room for maneuver in 2020, unless bold and decisive decisions are produced very soon, it'll be incredibly difficult to succeed in achieving this global goal agreed in Cancun," Birol added.
In terms of fuels, based on IEA, 44 percent of the estimated CO2 emissions in 2010 came from coal, 36 percent from oil, and 20 percent from natural gas.
Region by region, the IEA estimated that 40 percent of global emissions came from OECD countries in 2010, whilst non-OECD emerging economies saw stronger boost within the emission as their economic growth accelerated.
Furthermore, on a per capita basis, OECD countries collectively emitted 10 tons, more than 5.8 tons in China and 1.5 tons in India.
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