Science In Action - A Very Brief History of Our Atmosphere in 3 Billion Years - ÃÛÑ¿´«Ã½ Sounds

Science In Action - A Very Brief History of Our Atmosphere in 3 Billion Years - ÃÛÑ¿´«Ã½ Sounds
A Very Brief History of Our Atmosphere in 3 Billion Years
Roger Buick on discovering half the Earth’s atmosphere was missing in its early years.