{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T21:26:21Z","timestamp":1789161981044,"version":"build-2803163510"},"reference-count":25,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"4852","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Science"],"published-print":{"date-parts":[[1988,4,29]]},"abstract":"<jats:p>\n            The stratospheric concentration of trace gases released in the atmosphere as a result of human activities is increasing at a rate of 5 to 8 percent per year in the case of the chlorofluorocarbons (CFCs), 1 percent per year in the case of methane (CH\n            <jats:sub>4<\/jats:sub>\n            ), and 0.25 percent per year in the case of nitrous oxide (N\n            <jats:sub>2<\/jats:sub>\n            O). The amount of carbon dioxide (CO\n            <jats:sub>2<\/jats:sub>\n            ) is expected to double before the end of the 21st century. Even if the production of the CFCs remains limited according to the protocol for the protection of the ozone layer signed in September 1987 in Montreal, the abundance of active chlorine (2 parts per billion by volume in the early 1980s) is expected to reach 6 to 7 parts per billion by volume by 2050. The impact of these increases on stratospheric temperature and ozone was investigated with a two-dimensional numerical model. The model includes interactive radiation, wave and mean flow dynamics, and 40 trace species. An increase in CFCs caused ozone depletion in the model, with the largest losses near the stratopause and, in the vertical mean, at high latitudes. Increased CO\n            <jats:sub>2<\/jats:sub>\n            caused ozone amounts to increase through cooling, with the largest increases again near 45 kilometers and at high latitudes. This CO\n            <jats:sub>2<\/jats:sub>\n            -induced poleward increase reduced the CFC-induced poleward decrease. Poleward and downward ozone transport played a major role in determining the latitudinal variation in column ozone changes.\n          <\/jats:p>","DOI":"10.1126\/science.240.4852.634","type":"journal-article","created":{"date-parts":[[2006,10,5]],"date-time":"2006-10-05T21:21:15Z","timestamp":1160083275000},"page":"634-637","source":"Crossref","is-referenced-by-count":117,"title":["Stratospheric Response to Trace Gas Perturbations: Changes in Ozone and Temperature Distributions"],"prefix":"10.1126","volume":"240","author":[{"given":"Guy","family":"Brasseur","sequence":"first","affiliation":[{"name":"Belgian Institute for Space Aeronomy, 1180 Brussels, Belgium."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew H.","family":"Hitchman","sequence":"additional","affiliation":[{"name":"National Center for Atmospheric Research, Boulder, CO 80307."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"221","reference":[{"key":"e_1_2_1_1_1","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1002\/qj.49710142808","volume":"101","year":"1975","unstructured":"BARNETT, J.J., TEMPERATURE-DEPENDENCE OF OZONE CONCENTRATION NEAR STRATOPAUSE, QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY 101: 245 (1975).","journal-title":"QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY"},{"key":"e_1_2_1_2_1","unstructured":"Brasseur G. Aeronomy of the Middle Atmosphere (1987)."},{"key":"e_1_2_1_3_1","doi-asserted-by":"crossref","first-page":"7343","DOI":"10.1029\/JC086iC08p07343","volume":"86","year":"1981","unstructured":"BRASSEUR, G, STRATOSPHERIC CHEMICAL AND THERMAL RESPONSE TO LONG-TERM VARIABILITY IN SOLAR UV IRRADIANCE, JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS AND ATMOSPHERES 86: 7343 (1981).","journal-title":"JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS AND ATMOSPHERES"},{"key":"e_1_2_1_4_1","doi-asserted-by":"crossref","first-page":"10903","DOI":"10.1029\/JD092iD09p10903","volume":"92","year":"1987","unstructured":"BRASSEUR, G, RESPONSE OF MIDDLE ATMOSPHERE TO SHORT-TERM SOLAR ULTRAVIOLET VARIATIONS .2. THEORY, JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 92: 10903 (1987).","journal-title":"JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES"},{"key":"e_1_2_1_5_1","unstructured":"Brasseur G. 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