And from the corporate sector, seven companies involved in aviation have written to European governments complaining about the recent inclusion of plane emissions in the EUEmission Trading Scheme (ETS).
They'll be talking about what needs to be done to ensure that an adequate proposal goes on the table at the next UN climate summit, in Qatar in December, for putting EUemission cuts (and possibly others too) under the Kyoto Protocol.
The new rule, which came into force in January, means that all airlines have to add up greenhouse gas emissions from flights that begin or end at EU airports, and must pay a small charge, or trade carbon permits on the EUemission trading scheme, if they exceed their allowance.