{"id":1206714,"name":"Ozone concentration (1960 = 0)","unit":"(1960 = 0)","createdAt":"2026-03-06T11:06:13.000Z","updatedAt":"2026-03-06T11:06:13.000Z","coverage":"","timespan":"1960-2100","datasetId":7493,"columnOrder":0,"shortName":"ozone_concentration__1960__0","catalogPath":"grapher/climate/2018-07-01/ozone_and_chlorine_projections_to_2100__scientific_assessment__2014/ozone_and_chlorine_projections_to_2100__scientific_assessment__2014#ozone_concentration__1960__0","type":"float","datasetName":"Ozone and chlorine projections to 2100 (Scientific Assessment, 2014)","datasetVersion":"2018-07-01","nonRedistributable":false,"display":{"unit":"(1960 = 0)"},"schemaVersion":1,"presentation":{},"source":{"id":31201,"name":"Ozone and chlorine projections to 2100 (Scientific Assessment 2014)","dataPublishedBy":"Hegglin, M. I., Fahey, D. W., McFarland, M., Montzka, S. A., & Nash, E. R. (2014). Twenty questions and answers about the ozone layer: 2014 update. World Meteorological Organization, UNEP, NOAA, NASA, and European Commission.","dataPublisherSource":"","link":"https://public.wmo.int/en/resources/library/twenty-questions-and-answers-about-ozone-layer-2014-update","retrievedDate":"2026-03-05","additionalInfo":"Figures represent stratospheric ozone, and effective stratospheric chlorine (ESC) based on historical measurement and future projections from chemistry-climate models.\n\nChemistry-climate models are used to make projections of total ozone amounts that account for the effects of ozone-depleting substances (ODSs) and climate change. Regional and global projections are shown for total ozone and ESC for the period 1960–2100, referenced to 1960 values (i.e. 1960 = 0).\n\nData is based on those in Q20-2 in 'Twenty questions and answers about the ozone layer: 2014 update', published as the 2014 edition of the Scientific Assessment Panel of the Montreal Protocol.\n\nData was extracted from the static figure, Q0-1, using the extraction tool WebPlotDigitizer (https://apps.automeris.io/wpd/)."},"dimensions":{"years":{"values":[{"id":1960},{"id":1965},{"id":1970},{"id":1975},{"id":1980},{"id":1985},{"id":1990},{"id":1995},{"id":2000},{"id":2005},{"id":2010},{"id":2015},{"id":2020},{"id":2025},{"id":2030},{"id":2035},{"id":2040},{"id":2045},{"id":2050},{"id":2055},{"id":2060},{"id":2065},{"id":2070},{"id":2075},{"id":2080},{"id":2085},{"id":2090},{"id":2095},{"id":2100}]},"entities":{"values":[{"id":36473,"name":"Antarctic","code":null},{"id":36475,"name":"Arctic","code":null},{"id":272,"name":"Global","code":null}]}},"origins":[]}