ABSTRACT

Aerosols are airborne suspensions of particulate matter (PM). They can have effects on both human health and climate. Indeed, greenhouse gas (GHG) mitigation steps can also provide more immediate and localized health co-bene†ts to the localities that implement these mitigation measures, especially in terms of reductions in PM air pollution and their associated adverse health impacts. These co-bene†ts, if fully considered and quanti†ed, can potentially be a signi†cant motivator to encourage the near-term adoption of GHG measures. In addition, changes in aerosol concentrations can result in their own short-term effects on climate change. In this chapter, we introduce the principles of aerosol climate change and health effects, and present a framework for the estimation of the ancillary health co-bene†ts that can be derived from various GHG strategies that result in reductions of PM air pollution.