Chloe Johnson, Minneapolis Star Tribune
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Alternating extremes of heavy rainfall and drought are resulting in wildly varying river levels. For the U.S. Army Corps of Engineers, it makes the multi-million-dollar practice of dredging for more difficult to plan.
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A hotter atmosphere is causing rain to fall in harder bursts, pushing back planting seasons and drowning crops. At the same time as human-driven climate change is juicing precipitation, Corn Belt farming practices such as installing underground drainage tiles and leaving fields bare after harvest are changing how water moves across the landscape and into waterways.