Long unknown in the West, The Biosphere established the field of biogeochemistry and is one of the classic founding documents of what later became known as Gaia theory. It is the first sustained expression of the idea that living matter is a geological force that can shape Earth’s evolution, changing its landforms, climate, and atmosphere. This groundbreaking work sheds light on the interconnectedness of life and geology, offering profound insights into the Earth’s ecological balance and the impact of human activities on the planet.