Science and a series of extreme weather events over recent years point to the urgency of the climate crisis and the need for the aviation industry to do its share as effectively as possible. In this context, we are writing to express our deep concern that Deutsche Lufthansa AG has been given the option of using carbon offsets from industrial gas projects under the Kyoto Protocol flexible mechanisms, namely the Clean Development Mechanism (CDM) and Joint Implementation (JI), to comply with your 2012 emission reduction targets under the European Union Emissions Trading Scheme (EU ETS).