Wind blows due to air-pressure gradients that are the result of the uneven heating of the Earth's atmosphere. Prevailing winds blow in a consistent direction over large areas of the Earth's surface, while local winds are... More » Science Earth Science

The trade winds are caused by a combination of convection air currents and the Earth's rotation. Air is warmed near the Equator and moves towards each pole, respectively. This air is deflected by the Coriolis effect, or ... More » Science Weather & Tides Weather Forecasts

Wind causes erosion in one of three ways: suspension, saltation or surface creep. There are many problems that arise from wind erosion, including air pollution, soil loss and dryness. Soil tillage, crop barriers and crop... More » Science Earth Science Soil
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The uneven heating of the Earth's surface creates hot and cold spots, creating the potential for convective currents. Air above a warm spot rises, creating a low pressure zone near the surface. Colder, denser air near th... More » Science Earth Science

Wind energy is created when moving air causes a wind turbine to rotate, powering a motor that generates electricity. The energy of the wind itself derives from differential heating of the air by the sun and the rotation ... More » Science Earth Science

Wind speed is the rate or movement of air flow as it travels from high to low pressure, in relation to the Earth. Warm air rises because it weighs less than cold air, and the cold air then moves in and replaces the warm ... More » Science Earth Science

Wind is created by the uneven heating of Earth's surface and atmosphere. Different substances on the planetary surface absorb solar radiation at different rates. Warmer air expands to create a pressure difference that pr... More » Science Earth Science Atmosphere