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NASA | Science for a Hungry World: Part 2

To find out more visit: http://www.nasa.gov/topics/earth/features/ag_casts/index.html Want more? Subscribe to NASA on iTunes! http://phobos.apple.com/WebObjects/MZStore.woa/wa/viewPodcast?id=283424434 Or get tweeted by NASA: http://twitter.com/NASAGoddard Episode two reveals why a space-based perspective is crucial to understanding how the food supply is distributed around the world. Satellites can reveal how many fields have been planted and how a crop is growing, providing a way to predict how much of a give commodity will be available at harvest. Governments and aid agencies around the world use this information to help them make informed decisions about food prices and trade and the possible need for aid long before harvest. The organizations that use NASA data include the United States Department of Agricultures Foreign Agricultural Service and USAID's Famine Early Warning System Network.
Length: 04:46

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