European Union lawmakers are set to propose that emissions from all voyages in and out of the bloc are covered by its Emission Trading System (ETS).

The proposal, included in an unofficial draft of the European Parliament's rapporteur on the matter, is meant to force the hand of the International Maritime Organization to introduce, by 2028, carbon pricing equivalent to measures taken within the EU.

If eventually adopted, the proposal would provide much sharper claws than a current version of ETS draft legislation, submitted last year by the European Commission — a different EU institution — that foresees inclusion in the scheme of just 50% of all carbon emitted in voyages between EU and non-EU states.