Brussels, 04/07/2003 (Agence Europe) - This week, Bulgaria closed accession talks on the tricky and complex "environment" chapter. The country undertook to respect, by 1 January 2007 (the deadline fixed by the government for accession), the whole of acquis communautaire on protection of the environment, except for the following sectors for which Bulgaria was able to negotiate transitional periods: - sulphur content of certain liquid fuels (transitional period until end 2011); - emissions...