The deadline to submit a session, town hall, or pre-conference workshop proposal for AGU25 has passed. Please search for and review proposed sessions below. Please note this site is frozen as of 4/29/25 and will not reflect any changes to proposals made after this date.


Conveners will be contacted by the AGU25 Program Committee with any requests for mergers or edits to proposals. Conveners will be notified of the acceptance of their proposal in mid-June.


Abstract submissions will also open in mid-June and the deadline for abstract submissions is 30 July, 2025.


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Abstract: Some Remaining Challenges for the Montreal Protocol and Recovery of the Stratospheric Ozone Layer (AGU25)

Some Remaining Challenges for the Montreal Protocol and Recovery of the Stratospheric Ozone Layer

Stephen A Montzka1, Geoffrey S Dutton2, Martyn Chipperfield3, Sean M Davis4, Zihao Wang5, Helen Walter-Terrinoni6, Isaac J Vimont1, Lei Hu7, Scott Clingan8, Molly Crotwell2, Brad David Hall9 and Robert W Portmann9, (1)NOAA Boulder, Global Monitoring Laboratory, Boulder, United States, (2)Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (3)University of Leeds, School of Earth and Environment, Leeds, United Kingdom, (4)Chemical Sciences Division, NOAA Earth System Research Laboratory; Cooperative Institute for Research in Environmental Sciences, Boulder, United States, (5)University of Leeds, Leeds, United Kingdom, (6)Air-Conditioning, Heating, and Refrigeration Institute, Arlington, United States, (7)NOAA Boulder, Boulder, United States, (8)Cooperative Institute for Research in Environmental Sciences (CIRES), NOAA/GML, Boulder, United States, (9)Retired, Boulder, United States