Governments meeting at the 4th of 5 negotiations are running out of time to address key issues before finalizing a legally binding treaty on mercury. Most major issues remain unresolved and the Zero Mercury Working Group expressed concern over the lack of progress at such a late stage. “There has been no substantial progress on the biggest sources of mercury pollution nor in reconciling the different positions of governments,” said Michael Bender, ZMWG co-coordinator. Issues as straightforward as the phase out of mercury in products and processes and supply and trade did not progress any better, according to Bender. Barely visible in the draft treaty text are core requirements for the environmentally sound management of mercury, which are contingent on future decisions, and the issue of contaminated sites has only been minimally addressed.