Such activities are aimed at improving efficiency and reducing greenhouse gas emissions (mainly carbon dioxide) and other pollutants, such as sulphur dioxide, oxides of nitrogen and particulate matter.
这种活动是针对改善效率和减少温室气体排放(主要是二氧化碳)和其他污染物质,例如二氧化硫和氧化氮,特别是后者。