UN: We'll Eat Cactus Because Of Global Warming


Arizona might be where the world turns for food in the future, if a United Nations prediction comes true.  

The U.N.'s Food and Agriculture Organization is co-authoring a book that says prickly pear cactus might become a large food source around the world because of global warming.  The book says prickly pear is a good substitute for crops that might stop growing because of rising temperatures.  

The cactus is drought-resistant and easy to cultivate, and experts say almost every part of the prickly pear is edible.


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