The present document has been prepared for the 4th meeting of the UNEP Working Group on Nitrogen that takes place on 28 September 2023 in Nairobi and online. The objective of the paper is to spur further dialogue amongst focal points of the Working Group under Item 5 of the provisional agenda. Inputs and perspectives will be sought on options and modalities for improved coordination of policies across the global nitrogen cycle in line with UNEA resolutions 4/14 and 5/2 on sustainable nitrogen management. The paper builds on the work done so far by the Working Group, including the report of the Task Team and feedback and experiences shared by the Working Group focal points, as well as relevant international developments.