A Conceptual History of SLCPs

Abstract

Short-lived climate pollutants (SLCPs) encompass a vast range of substances with diverse properties – so how did they all come to be included under one label? This chapter traces the history of this policy concept and its framing over time by examining both the scientific reports and political declarations that have shaped it. The label of SLCPs highlights the interconnectedness of climate change and air pollution, thereby encapsulating a broader reframing of how these issues have traditionally been perceived and addressed. However, like any concept, it highlights some aspects of reality at the expense of others – with political implications. Notably, this chapter finds that impulses for addressing SLCPs often originated in the domestic politics of the United States, at times sparking controversy on the global stage. While connecting the climate and air pollution brought together a diverse coalition of actors behind SLCP governance, this rests on a delicate balance that may easily be disturbed. Looking back on the concept’s history, which included successes and failures, the chapter identifies lessons for those seeking to address SLCPs going forwards, emphasising particularly the need to be aware of this political dimension and, with that in mind, craft a more equitable and inclusive SLCP agenda.