Norwegian aviation emissions take off

NOx from domestic flights reported doubling, CO2 nearly doubling, over last ten years

Carbon dioxide (CO2) emissions from Norwegian domestic aviation rose 86% in the ten years to 1999, the national statistics office (SSB) reported today. The report also shows that emissions of nitrogen oxides (NOx) doubled during the same period and in any case are now reckoned to be "30% higher than previously calculated".

SSB adds in a statement: "Total passenger kilometres rose by 82% from 1989 to 1999. During this period there was also an almost total change of aircraft. DC9s, older Boeing 737s and Twin Otters were replaced with modern and large types of airplane. This might also explain why NOx emissions have risen more than fuel consumption. Higher fuel efficiency can often lead to higher NOx emissions."

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