Wind - WikipediaCherry tree moving with the wind blowing about 22 m/sec (about 79 km/h or 49 mph) Wind is the natural movement of air or other gases relative to a planet's surface. Winds occur on a range of scales, from thunderstorm flows lasting tens of minutes, to local breezes generated by heating of land surfaces and lasting a few hours, to global winds resulting from the difference in absorption of solar ene
