Q&A Environment

<p><span>The UN's international climate panel (IPCC) indicates that air traffic currently accounts for about 2% of the global emissions of carbon dioxide. Along with the emission of nitric oxides, steam and effects from condensation trails, aviation is estimated to account for 3.5% of the total human impact on climate. Aviation accounts for 4-5% of Sweden's total emissions of carbon dioxide. The transportation sector in turn accounts for over a third of Sweden's total emissions of carbon dioxide.</span></p>
<p><span>Aircraft engines emit the same types of pollutants as in incineration of other fossil fuels: carbon dioxide, nitric oxides, hydrocarbons, particles, carbon monoxide and sulphur dioxide. Aircraft emit carbon dioxide in direct relation to fuel consumption. At high altitude, aviation also contributes to the impact on climate through the emission of nitric oxides, steam and condensation trails. The combined effect is usually estimated at twice the effect of carbon dioxide, but there is great uncertainty about this effect on climate however.</span></p>
<p><span>Compared with aircraft from the 1960s, today's aircraft are 70% more fuel-efficient per person/kilometre.</span></p>
<p><span>Aircraft noise is the undesired sounds that arise, primarily when planes start and land. At start-up the engine thrust is high but because the plane usually climbs steeply, a relatively limited geographic area is subjected to noise. In approach the motor thrust is considerably lower, but the geographic area that is affected is larger as the plane is in a glide path in toward the runway, which is necessary with respect to flight safety.</span></p>
<p><span>The way LFV is working to reduce the number of people exposed to aircraft noise is that LFV, to the greatest possible degree, guides the planes to flight paths that are away from populated areas. Green approaches, which are performed at Stockholm-Arlanda and other airports, also reduce noise as the planes “glide fly” during a large portion of the approach.&nbsp;</span></p>
<p><span>LFV continually tries to find new ways to reduce aircraft emission. We focus on the airplanes' movements, working methods and technical systems. We are also working on our internal emissions, for example by using interactive types of meetings as well as minimizing our internal resource use at all levels in our day-to-day work.</span></p>