While environmentalists may blame climate change for the worst floods in the Midwest since 1993, dams and river straightening have a role too.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/how-river-engineering-tied-us-floods
[2] http://admin.indiaenvironmentportal.org.in/category/author/fred-pearce
[3] http://admin.indiaenvironmentportal.org.in/category/journal/new-scientist
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/climate-change
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrology
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/united-states-america-us