Earth has 5 major climate zones — each with its own temperature, rainfall, and seasons that create completely different environments!
Weather is what's happening outside today — sunny, rainy, hot, cold. Climate is the average pattern of weather in a place over 30 or more years. Climate determines which biomes exist where, what crops grow, and how people and animals live. Earth's climate zones are determined primarily by distance from the equator (latitude), distance from the ocean, and elevation.
"Climate is what you expect, weather is what you get." A place's climate tells you to expect snow in January (like Minnesota), while weather tells you it's actually snowing today. Climate is the long-term pattern; weather is the short-term reality. Climate scientists analyze data collected over decades to understand and predict climate patterns.
These five zones — based on the Köppen Climate Classification system — describe the broad climate patterns found across Earth. Each contains several sub-types with more specific characteristics.
In 1884, German-Russian climate scientist Wladimir Köppen created a system to classify Earth's climates based on temperature and precipitation data. He used letters to label each type — for example, "A" for tropical, "B" for dry, "C" for temperate, "D" for continental, and "E" for polar. Within each category are subtypes describing rainfall patterns and seasonal temperature extremes. This system is still used by climate scientists today!
Brazil, Indonesia, Democratic Republic of Congo, Philippines, Colombia
Sahara Africa, Saudi Arabia, Australian Outback, Gobi Desert, Atacama Chile
Much of USA, Western Europe, eastern China, southeastern Australia, New Zealand
Antarctica, Greenland, northern Alaska, northern Canada, northern Siberia
As Earth's average temperature rises due to climate change, climate zones are gradually shifting. Tropical zones are expanding toward the poles, desert regions are getting drier, and polar zones are shrinking. This affects where crops can grow, which species can survive, where people can live, and how often extreme weather events like droughts, floods, and storms occur. Understanding climate zones is the first step to understanding climate change.
Major climate zones on Earth based on the Köppen classification system
of Earth's land surface falls in the temperate climate zone — the most populated zone
Wettest place on Earth — India — receives about 467 inches of rain per year
Coldest temperature ever recorded — Vostok Station, Antarctica (polar zone)
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