The early faint sun paradox: Organic shielding of ultraviolet-labile greenhouse gases

Science

Volumn 276, Issue 5316, 1997, Pages 1217-1221

  Sagan, Carl ^a   Chyba, Christopher ^b  

^a Department of Population Medicine and Diagnostic Sciences   (United States)

^b UNIVERSITY OF ARIZONA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIR ANALYSIS; AIR TEMPERATURE; ARTICLE; GAS ANALYSIS; GREENHOUSE EFFECT; PRIORITY JOURNAL; SOLAR ENERGY;

NASA DISCIPLINE EXOBIOLOGY; NON-NASA CENTER;

AMMONIA; ATMOSPHERE; CARBON DIOXIDE; EARTH (PLANET); EVOLUTION, PLANETARY; GREENHOUSE EFFECT; METHANE; MODELS, CHEMICAL; PHOTOLYSIS; SOLAR SYSTEM; ULTRAVIOLET RAYS;

EID: 0031001793     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.276.5316.1217     Document Type: Article

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116. This research was supported in part by NASA grants NAGW-3273, NAGW-1896, and NAGW-1870. We thank K. J. Zahnle, J. Bada, J. Kasting, W. R. Thompson, B. N. Khare, S. L. Miller, E. E. Salpeter, S. Epstein, J. W. Schopf, D. Layzell, D. Turpin, J. C. G. Walker, S. Soter, J. Goldspiel, P. Gogarten, L. A. Wilson, G. Bowen, C. de Ruiter, R. Margraves, and G. D. McDonald.