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Rivers such as the Mississippi, Rhine and Yangtze hit historically low levels in 2022, with the Mississippi at Memphis too low for barges in mid-October. Dredging and reservoir releases were needed to keep channels open.
Scientists argue that climate change will make such swings in river levels more frequent.
More frequent low-water episodes raise the risk of barge backups and higher freight costs for bulk grain shipments. This adds a recurring transport premium to commodity prices.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.