The world’s nations will wrap up negotiating a treaty this weekend to address the global crisis of plastic pollution.

The chairman of talks aiming for an international treaty to rein in pollution from plastics issued a document on Friday outlining measures that could furnish the basis of a pact, in an attempt to spur discussions as a Dec.

Negotiations for a global plastics treaty hit a boiling point on Nov. 27, as countries accused each other of bad faith and expressed frustration over stalled talks.