More than 10 years after the 1989 collapse of communism, the rusting remains of smelters and mines are a legacy eastern Europe is finding hard to get rid of. Dilapidated smelting and mining facilities continue to spew toxins into an already befouled environment in these countries, many of which are hoping to join the European Union. The EU is using the lure of enlargement to push candidate states to put clean-up high on their agenda. [Details on Serbia, Romania, Bulgaria]