negotiations: discussions that take place in which different parties try to reach an agreement proper: placed after a word to emphasise that you are referring to the most important - the central part of something (here referring to the formal negotiations which follow ) consensus: general agreement amongst a group of people bombshell: a sudden piece of bad or shocking news ratifying the treaty: formally accepting a written agreement polluters: those (countries) which are causing the pollution signed up: agreed to take part |