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Balance 2015 ENG

Sustainability Report Balance // Issue 2015 // Lufthansa Group // 111 V VOC – Volatile Organic Compounds Volatile organic substances that are char- acterized by high steam pressure and thus evaporate easily into the atmosphere at room temperature. VOCs are present in solvents, cleaning agents, fuels, and other substances. In the presence of nitrogen oxides and intense sunlight, VOCs lead to the generation of ozone. W Water vapor The most important greenhouse gas, even ahead of carbon dioxide. Without water vapor from natural sources, the Earth’s surface would be around 22 degrees Celsius cooler. This makes water vapor responsible for two-thirds of the natural greenhouse effect (33 degrees Celsius). For each kilogram of kerosene burned, 1.24 kilograms of water vapor are released. Concerns that air traffic might increase the concentration of water vapor in the strato- sphere and thus change the climate have been refuted by scientific research. The German Aerospace Center (DLR) concluded that even a one hundred-fold increase in the quantity of water vapor emitted by air traffic would not result in a detectable cli- matic signal. T Tonne kilometer (TKT/TKO) Measure of transport performance (payload multiplied by distance). A distinction is made between available transport perfor- mance (TKO, tonne kilometers offered) and the actual transport performance (TKT, tonne kilometers transported). In calcu- lating payloads, passengers are taken into account by means of a statistical average weight. Town Meeting Information event for employees at different locations of a company. Transparency International Anti-corruption organization, of which Lufthansa has been a member since 1999. U UHC – Unburned hydrocarbons Organic mixture of carbon and hydrogen that results from the incomplete combus- tion of fuels containing hydrocarbons or from the evaporation of fuel. UN Global Compact Global network in whose context the United Nations cooperates with private-sector corporations and civil action organizations to advance human rights, labor standards, environmental protection, and anti-corrup- tion measures. Deutsche Lufthansa AG has been a member since 2002.