Welcome to Earth: Episode 50

14/07/2024 17 min Episodio 50
Welcome to Earth: Episode 50

Listen "Welcome to Earth: Episode 50"

Episode Synopsis

This week we finally reach Earth to see if there are any special things about Earth that make it well suited for life that seem to be more than just “lucky”.  Perhaps we are starting to see more clearly the fingerprint of God coming into view. “The near-ultraviolet, visible, and near-infrared spectra – the light most useful to life and sight – are a razor-thin sliver of the universe’s natural, electromagnetic emissions: about one part in 1025.  That is much smaller than one star out of all the stars in the entire visible universe: about 1022.  As it happens, our atmosphere strikes a nearly perfect balance, transmitting most of the radiation that is useful for life while blocking most of the lethal energy.”  The Privileged Planet, Gonzales & Richards, 2004 “Suppose a prolonged period of large volcanic eruptions rapidly increased the amount of carbon dioxide in the atmosphere.  Through the greenhouse effect, the upsurge in carbon dioxide would raise the global temperature.  The higher temperature and carbon dioxide level, would in turn, speed up chemical weathering, and thus the removal of carbon dioxide from the atmosphere.  Eventually, the carbon dioxide and temperature would return to their pre-eruption levels.” The Privileged Planet, Gonzales & Richards, 2004 “Many elements besides carbon also exist in highly atypical abundances on Earth.  These unusual quantities result from the solar system’s unique birth and the extraordinary transformations during its youth.  The 32 elements that are essential for the existence of advanced life and for sustaining advanced civilization are present on Earth in especially atypical abundances.”  Improbable Planet, Huge Ross, 2016