Computer Science
Scientific paper
Aug 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989natur.340..457s&link_type=abstract
Nature (ISSN 0028-0836), vol. 340, Aug. 10, 1989, p. 457-460.
Computer Science
35
Earth Surface, Habitability, Vegetation, Weathering, Cooling, Geotemperature, Microorganisms, Rocks, Silicates
Scientific paper
It is calculated here that if today's weathering is 10, 100, or 1000 times the abiotic weathering rate, then an abiotic earth would be, respectively, about 15, 30, or 45 C warmer than today. The upper two temperatures are preferred estimates because of the probable almost complete absence of soil under abiotic conditions, suggesting that without a biota that significantly enhances weathering rates, the earth today would be uninhabitable for nearly all but the most primitive microbes. Life may have been crucial in cooling early earth and maintaining relatively cool conditions.
Schwartzman David W.
Volk Tyler
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