The Subsidiary Body for Implementation considered financial and administrative issues. In the afternoon, the Joint Working Group on compliance conducted its first meeting. The effects of current aviation and of a range of unconstrained growth projections for aviation are examined in the report, including the possible effects of a fleet of second generation, commercial supersonic aircraft. One of the new findings concerns aircraft contrails. Contrails are triggered from the water vapour emitted by aircraft.
Contrails tend to warm the Earth s surface, similar to thin high clouds.
The Republic of Korea said the facilitative and punitive aspects of taking measures against non-compliance should be incorporated in a balanced way. The delegate from the Russian Federation called for a well-defined legal interpretation of compliance. Canada called for stock taking to enhance the efficiency of the JWG's approach to compliance. The US welcomed open negotiations at the Joint Working Group and reserved the option to evaluate and discuss compliance issues before agreeing to a proposed questionnaire. China states that his priority is to open the door for rapid ratification of the Kyoto Protocol.