Evaluating and Addressing the Leakage Problems of Black Carbon Mitigation in China's Domestic Sector

摘要

The Kyoto Protocol and the newly signed Paris Agreement did not specifically regulate the mitigation of black carbon, a type of particulate matter with significant warming potential and health impacts. However, under the more decentralized regime on climate mitigation in the Paris Agreement, individual countries could deliberate more freely on mitigating greenhouse gases, including black carbon. The domestic sector in East and South Asia as well as the rest of the developing world has the greatest overall impacts, particularly on the climate-sensitive Arctic surface temperature. Fuel switching is often recognized as one of the most effective technical methods to reduce black carbon emissions from cooking and heating stoves. Agricultural wastes with high emission factors of black carbon could be replaced by, for example, liquefied petroleum gas (LPG) with negligible emissions. The nearly 100% mitigation efficiency of this fuel switching is largely for the in situ emissions, but it does not fully take into consideration the lifecycle of the replaced agricultural wastes causing leakage problems.