Implications of solar evolution for the earth's early atmosphere

Details Implications of solar evolution for the earth's early atmosphere Implications of solar evolution for the earth's early atmosphere

Dec 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977sci...198.1035n&link_type=abstract

Science, vol. 198, Dec. 9, 1977, p. 1035-1037.

Computer Science

55

Climate, Environment Models, Primitive Earth Atmosphere, Stellar Evolution, Sunlight, Greenhouse Effect, Solar Atmosphere, Solar Neutrinos, Stellar Models

Scientific paper

The conflict between solar and terrestrial-climate models in prediction of solar luminosity during the life of the sun is discussed. This conflict consists in that almost all solar models predict an increase in solar luminosity of the order of 25% during the life of the sun, whereas simple terrestrial-climate models indicate that a decrease of even a few percent in the solar constant produces a completely glaciated earth, which, because of the high albedo of ice, requires a solar constant higher than the present value to thaw the planet. It is shown that an increasing solar luminosity is a basic feature shared by even quite exotic solar neutrino-oriented models. Possible solutions to the observed conflict are examined in detail.

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