Scale covariant cosmology and the temperature of the earth

Details Scale covariant cosmology and the temperature of the earth Scale covariant cosmology and the temperature of the earth

May 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978a%26a....65..389c&link_type=abstract

Astronomy and Astrophysics, vol. 65, no. 3, May 1978, p. 389-391.

Physics

5

Cosmology, Earth (Planet), Planetary Temperature, Solar Terrestrial Interactions, Surface Temperature, Algae, Ammonia, Greenhouse Effect, Matter (Physics), Solar Flux Density, Stellar Evolution

Scientific paper

Geological data are used as cosmological determinants in a study of the temperature of the early earth (2.3 to 4.5 billion years ago). It is known that the energy output of the sun during that period was on the order of 30-40% lower than at present, and deduced that the mean temperature of the earth should have fallen to as low as 245 K, i.e., below the freezing point of seawater. Strong evidence exists, however, to indicate that algae (therefore liquid water) was present. To reconcile the discrepancies, a model is proposed whereby terrestrial G and M vary. It is further noted that atmosphere H2 may be a better agent than NH3 for producing a greenhouse effect.

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