Projected Aerosol (SO2) Emissions
				q  The SRES scenarios include the possibility of either increases or decreases in anthropogenic aerosols depending on the extent of fossil fuel use and policies to abate polluting emissions. q  In addition, natural aerosols (e.g., sea salt, dust and emissions leading to the production of sulphate and carbon aerosols) are projected to increase as a result of changes in climate.