Though operators are building ships, and towns are investing in landings and other infrastructure, fluctuations in the river’s flow, exacerbated by climate change, are hampering sailings. Mississippi River, Cruises, Global Warming, Travel and Vacations, Rivers, Levees and Dams, Floods, Drought, American Cruise Lines, Viking River Cruises Inc, Army Corps of Engineers Though operators are building ships, and towns are investing in landings and other infrastructure, fluctuations in the river’s flow, exacerbated by climate change, are hampering sailings. NYT > Business