In the Government Concentrates section of the October 1 issue of C&E News, CH reports that the Senate has unanimously passed a bill which would prohibit US airlines from participating in the European Union's Cap & Trade system for greenhouse gas emissions.
A similar bill has already been passed by the House and after working out minor differences in committee, we will see whether Pres. Obama will sign the legislation.
A secondary interesting aspect is how the European Union will respond. Will it prohibit US airlines from having their planes take off and land in EU country airports?