How The Earth Turned Green by Joseph E. Armstrong

A Brief 4.5-Billion-Year History of Plants

A concise natural history tracing how photosynthetic life transformed the planet over 4.5 billion years, from early microbes that oxygenated the atmosphere to the rise of land plants, forests and flowering species; it explains the anatomical and ecological innovations that allowed plants to colonize new habitats, altered global climate and geochemistry, and shaped the evolution of other life forms and Earth's surface environments.

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