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  Delta Flight 4770 from Calgary   •  Karen Hansen view larger image

Delta Flight 4770 from Calgary

Center-pivot irrigation systems create unique designs as they alter the face of the prairie. On a flight over western Kansas and Nebraska, I noted their imprint on the land. Years of pumping water from the Ogallala Aquifer has drastically depleted it, and I wonder how much longer it will be possible to continue this method of farming.

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