Will the new global mercury treaty be effective?

'Since mercury remains in the environment long after it is released, any decrease in mercury emissions will be slow to affect global mercury levels. This means that actions, or inactions, today will ultimately influence global levels long into the future,' Selin says, stressing the significance of the treaty's progress, however limited.
'Without policy measures, mercury emissions are likely to increase dramatically and preventing these emissions today will benefit the environment in the long term. It's clear that the Minamata Convention will help countries prevent future emissions,' Selin says. 'But we shouldn't expect an immediate change in mercury pollution levels.'
http://www.environmental-expert.com/articles/will-the-new-global-mercury-treaty-be-effective-391464