18. The average Earth’s surface temperature is growing since the Moon formation.

18. The average Earth’s surface temperature is growing since the Moon formation.

The Proto-Mars—Proto-Earth collision has occurred at the distance of 1.33 AU (3.5 milliard years ago). Since then the Earth-Moon duo is approaching the center of mass of the Solar System (in Venus) with a small but constant speed of about 15 m/year. It causes the shortening of the Earth’s orbit, the observed lowering of the number of days per a single year, and also the rising of the average temperature of the Earth’s surface, from -32°C then to +8.4°C today.

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