Carbon intensity is calculated as the relationship between the total amount of greenhouse gas emissions (expressed in tons of CO2 equivalent) and the GDP, with 2005 set as a continuous baseline. In the specific sector of energy, Tunisia aims to reduce its carbon intensity by 46 per cent compared to 2010 levels. Unconditional and conditional mitigation objectives Tunisia s unconditional contribution corresponds to a 13 per cent reduction in carbon intensity, with 2010 as the base year, or around 1/3 of the overall objective. The conditional contribution allows for an additional decrease of 28 per cent in carbon intensity, with 2010 as the base year.