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Airline CO2 Emissions (Asia)	Air operations
Cathay Pacific	10,436,000 tonnes g/ATK 627 g/RTK 866
Singapore Airlines	13,462,000 tonnes 0.85 kg/LTK
KLM Air France	26,422,000 tonnes
JAL	19,960 metric tons 784 g CO2/ton-km
BA	16,100,000 tonnes (3% of total air transport CO2 emissions )
SAS	4,245,000 tonnes - Scandinavian Airlines Businesses 1,928,000 tonnes - Subsidiaries and affiliates
Lufthansa	21,293,772 tons 11.07 kg/100pkm (specific passenger transport)
Virgin Atlantic Airways	0.125 million tonnes per aircraft 0.125+ Kilograms of CO2 Emission / RPK for the fleet	NOTE: RPK - revenue passenger km LTK - load tonne per km

Different airlines use different metrics to indicate performance. Consequently, it is difficult for investors to undertake meaningful comparisons.

Data Sources

Air France KLM - Sustainable Development Report 2005-06
http://www.klm.com/travel/corporate_en/facts_figures/annual_reports/sustainability_report_2005_2006/index.htm

British Airways –2005/06 Corporate Responsibility Report
http://www.britishairways.com/travel/crhome/public/en_gb

Cathay Pacific - Environmental Report 2005
http://www.cathaypacific.com/cpa/en_INTL/aboutus/community/environmental

JAL - CSR Report 2006
http://www.jal.com/en/environment/

Lufthansa balance - Company Social / Responsibility / Environmental Corporate Citizenship key data on Sustainability at Lufthansa Issue 2006
http://konzern.lufthansa.com/en/html/ueber_uns/balance/umwelt/index.html

SAS Group - Annual Report & Sustainability Report 2005
http://www.sasbraathens.no/en/About-SAS-Braathens/Sustainability/?vst=true

Singapore Airlines - Environmental Report 2005/2006
http://www.singaporeair.com/saa/en_UK/content/company_info/responsibility/index.jsp

Virgin Atlantic - Corporate Responsibility 2004/05
http://www.virgin-atlantic.com/en/us/allaboutus/ourstory/corporateresponsibility.jsp