Treaty of Lisbon (No. 8)

I am following what the Secretary of State is saying, but is it not the case that, although aviation will come into phase 3 of the EU emissions trading scheme, there will be an opt-out for industries in competition with businesses in countries without comparable carbon restraints? Does not that mean that international flights from the EU to the United States or the far east, which do not have carbon restraints comparable to those of the ETS, will not be included in the scheme? Will not the scheme therefore affect only flights within the EU?