期刊名称：Journal of Integrative Environmental Sciences
印刷版ISSN：1943-815X
电子版ISSN：1943-8168
出版年度：2010
卷号：7
页码：135-144
DOI：10.1080/19438151003621409
语种：English
出版社：Taylor & Francis
摘要：The development of potential metrics for comparing black carbon (BC) to carbon dioxide has been requested within legislation in the United States and has been discussed at the United Nations Framework Convention on Climate Change Conference of the Parties in Poznan: therefore, it is important to further investigate the advantages and drawbacks to using such a metric. For context, we summarize the various proposed CO2 equivalent metrics and the rationales for developing them. We use BC marginal abatement curves to examine the implications of using 100-year global warming potentials to include BC in greenhouse gas (GHG) trading regimes. This idealized study demonstrates the impacts on emissions of CO2, and radiative forcing over time. Finally, we address the drawbacks of trading poorly quantified short-lived emissions with GHGs despite different physical interactions with the climate system. While the case for reducing BC for both health and climate benefits is compelling, there are reasons for limiting the use of BC metrics to illustrative analyses, such as identifying which BC mitigation actions would provide the greatest climate benefits, rather than using these metrics for trading with GHGs. Indeed, market-based mechanisms in general may not be appropriate for BC regulation at this time.
关键词：black carbon; global warming potential; climate policy; metrics
