edu.ucar.opensky::articles:21567 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-25T16:00:58.140258 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7r78hxq Rapid increase in atmospheric iodine levels in the North Atlantic since the mid-20th century 2018-04-13T00:00:00Z publication https://n2t.org/ark:/85065/d7r78hxq https://doi.org/10.1038/s41467-018-03756-1 Cuevas, C. A. author Maffezzoli, N. author Corella, J. P. author Spolaor, A. author Vallelonga, P. author Kjær, H. A. author Simonsen, M. author Winstrup, M. author Vinther, B. author Horvat, C. author Fernandez, R. P. author Kinnison, Douglas E. author Lamarque, Jean-François author Barbante, C. author Saiz-Lopez, A. author UCAR/NCAR - Library publisher Atmospheric iodine causes tropospheric ozone depletion and aerosol formation, both of which have significant climate impacts, and is an essential dietary element for humans. However, the evolution of atmospheric iodine levels at decadal and centennial scales is unknown. Here, we report iodine concentrations in the RECAP ice-core (coastal East Greenland) to investigate how atmospheric iodine levels in the North Atlantic have evolved over the past 260 years (1750-2011), this being the longest record of atmospheric iodine in the Northern Hemisphere. The levels of iodine tripled from 1950 to 2010. Our results suggest that this increase is driven by anthropogenic ozone pollution and enhanced sub-ice phyto-plankton production associated with the recent thinning of Arctic sea ice. Increasing atmospheric iodine has accelerated ozone loss and has considerably enhanced iodine transport and deposition to the Northern Hemisphere continents. Future climate and anthropogenic forcing may continue to amplify oceanic iodine emissions with potentially significant health and environmental impacts at global scale. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2018 Author(s). This work is licensed under a Creative Commons Attribution 4.0 International License. None eng geoscientificInformation