Reactions ranged from begrudging acceptance to outrage at a European Parliament event last night discussing an offer made by the EU yesterday (4 September) to back down on its insistence on including aviation emissions in its emissions trading scheme (ETS). EU negotiators offered to limit the ETS scope during a high-level meeting of the International Civil Aviation Organization (ICAO) yesterday. In exchange, the ICAO council agreed to a draft text in which they pledge to work toward reaching a global deal to reduce aviation emissions by 2016. The 2016 deal would commit to starting, by 2020, one of three mechanisms...