In this video excerpt from NOVA: “Earth From Space,” observe the global pattern of water vapor circulation and learn how it connects the Sun, oceans, atmosphere, and life. Animations show how satellites in geostationary orbit provide a global view of the movement of water vapor. As water vapor produced near the equator travels toward Earth’s poles, it transports energy and creates weather. Variations in the topography of different regions result in different outcomes (for example, the Asian monsoon, an arid desert, or sweltering conditions).
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