Abatement of emissions of the engineered chemicals

摘要

This work assesses the contribution to climate change resulting from emissions of the group of halogenated greenhouse gases. A bottom-up emission model covering 22 technological sectors in four major regions is described. For annual emissions of HFCs, PFCs and SF_6 which are regulated under the Kyoto Protocol the relative contribution is projected to increase to 2% (600 MT CO_2 eq.) of global greenhouse gas emissions by 2010. This trend is expected to continue, emissions are projected to grow to a contribution of roughly 3% (870 MT CO_2 eq.) in 2020 compared to 0.9% (300 MT C02 eq.) in 1996. For HFCs, PFCs and SF_6 this study identifies global emission reduction potentials of 260 MT CO_2 eq. per year in 2010 and 640 MT CO_2 eq. per year in 2020 at below USS50 per ton. These values correspond to roughly 40% and 75% of projected emissions in 2010 and 2020, respectively.