Climate & Weather

Understand the difference between daily weather and long-term climate.

Weather Today

Weather describes short-term atmospheric conditions such as temperature, clouds, wind, humidity, and precipitation.

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Climate Patterns

Climate is the typical range of weather measured over decades.

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Seasons

Earth's tilted axis changes the angle and duration of sunlight through the year.

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Climate Zones

Tropical, dry, temperate, continental, and polar climates support different ecosystems and ways of life.

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Climate Change

Greenhouse gases trap heat that would otherwise escape to space.

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Observation and Forecasts

Satellites, radar, stations, ships, buoys, balloons, and computer models help scientists observe the atmosphere and forecast weather while tracking long-term climate trends.

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Weather Today

Weather describes short-term atmospheric conditions such as temperature, clouds, wind, humidity, and precipitation. It can change within minutes as air masses and pressure systems move.

Climate Patterns

Climate is the typical range of weather measured over decades. A place's latitude, elevation, nearby water, landforms, and ocean currents all help shape its climate.

Seasons

Earth's tilted axis changes the angle and duration of sunlight through the year. Seasons are opposite across the hemispheres and are not caused by Earth's distance from the Sun.

Climate Zones

Tropical, dry, temperate, continental, and polar climates support different ecosystems and ways of life. Mountains can create many climate zones over a short horizontal distance.

Climate Change

Greenhouse gases trap heat that would otherwise escape to space. Human activities have increased their concentrations, warming the climate and changing rainfall, ice, oceans, and extremes.

Observation and Forecasts

Satellites, radar, stations, ships, buoys, balloons, and computer models help scientists observe the atmosphere and forecast weather while tracking long-term climate trends.