The Oxygen Revolution

The Oxygen Revolution refers to a major scientific breakthrough that discovered how plants, algae, and certain bacteria produce oxygen through photosynthesis. This process, which uses sunlight to convert carbon dioxide and water into glucose and oxygen, dramatically increased Earth's oxygen levels billions of years ago. This change enabled complex life forms to evolve and thrive. The revolution transformed our planet’s atmosphere, making it possible for animals and humans to breathe and exist, and fundamentally reshaped life on Earth.