Answer
The problem associated with pumping groundwater for irrigation in the southern High Plains, also known as the Ogallala Aquifer, is the rapid depletion of the aquifer. Due to the region's semi-arid climate, natural recharge of the aquifer is relatively slow, while the demand for water for agriculture is high. As a result, groundwater is being extracted at a faster rate than it can naturally replenish, leading to a decline in the water table and reduced water availability in the long term.
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