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Physical Geography

Explore Earth’s physical systems—from mountains and rivers to climate patterns and fragile ecosystems. This hub organizes our best guides to landforms and water, weather and climate, biodiversity, and today’s pressing environmental issues. Start here, then dive into focused subtopics or explore places by continent, country, and city.

Explainers & Big Questions

Antarctica

Antarctica is Earth’s southernmost continent—a vast, windswept wilderness about the size of the United States and Mexico combined. It holds most of the planet’s fresh water locked in…

7 min read