;2018;Change in per cent;Change in per cent;  ;1990 - 2018;2017 - 2018; Greenhouse gases (mill. tonnes CO₂-equivalents); ; ; ; Emissions from Norwegian territory;52.9;3.4;0.4; Oil and gas extraction;14.5;75.6;-1.4; Manufacturing industries and mining;12.1;-38.7;0.2; Energy supply;1.8;325.4;-5.1; Heating in other industries and households;0.8;-68.2;-20.7; Road traffic;9.0;25.8;2.8; Aviation, navigation, fishing, motor equip. etc.;7.5;29.0;6.4; Agriculture;4.5;-4.3;-0.1; Other;2.9;6.7;0.0; Emissions of acidifying gases etc. (1 000 tonn); ; ; ; Nitrogen oxides (NOX);168;-17.9;1.4; Sulphur dioxide (SO2);15;-69.0;2.7; Ammonia (NH3);34;-0.3;0.4; Non-methane volatile organic compounds (NMVOC);154;-51.6;0.3; Carbon monoxide (CO);432;-50.8;-1.4;