Earth’s Atmosphere Demonstrates Stunning Biocentric Fine-Tuning
absorption spectrum, aerobic life, atmosphere, atmospheric gases, biology, carbon dioxide, Carl Sagan, Chemistry, earth, Encyclopaedia Britannica, extraterrestrial life, greenhouse effect, Homo sapiens, infrared radiation, Intelligent Design, light-eaters, metabolism, NASA, nitrogen, oxygen, ozone, photosynthesis, Physics, Earth & Space, silicate weathering, sun, sunlight, The Miracle of Man, Venus, visual light, volcanic activity, water vapor
For photosynthesis to proceed on a planet like Earth, sunlight (visual light) must penetrate the atmosphere all the way to the ground. Source