The overall cost of this ambition is estimated at €902 million, of which €96 million is unconditional, i.e. 5%. 2 World Bank, ( 3 World Bank, ( Emissions and removals trends: normal course of affairs (CNA) scenario) Figure.1: GHG emissions under the CNA scenario (KtCO2 Eq) The Union of the Comoros presents a net, carbon neutral balance, under the CNA scenario, of approximately -1 260 ktCO2eq in 2030: the carbon sink offsets all emissions from other sectors.