The CO2 emissions in Norway were at 52 million tons last year, a 0.9 percent decrease from the previous year and corresponded to a reduction of 450,000 tons of CO2 equivalents.
The less use of hydrofluorocarbon (HFC) refrigerant gases contributed most of the decline. A reduction of 143 tons HFC gases was achieved last year, corresponding to 540,000 tons of CO2 equivalents, the report said.
On the other hand, emissions from road traffic increased by 2.8 percent due to a significant reduction in the proportion of biofuels in the fuel mix between 2017 and 2018.
During the same period, emissions from tractors, construction equipment and other motor equipment also increased by 9.3 percent as a result of increased use of Ultra Low Sulphur Diesel.
In addition, the increased use of marine gas oil led to a 3 percent rise in the emissions of domestic shipping and fishing.
However, oil and gas extraction as well as industry and mining, two largest emission sources, had a reduction of 1 and 0.5 percent respectively in 2018.
Between 1990 and 2018, Norwegian industry saw a 39 percent reduction in CO2 emissions, NTB reported.