Residents of Chicago, Illinois, have the collective efforts of the Illinois-Michigan Canal, the Chicago Sanitary and Ship Canal
, the Cal-Sag Canal, and the phenomenal effort of reversing the flow of the Chicago river in 1892, to thank for their regular supply of clean water.
Later chapters cover topics such as alternative methods for snail control in aquaculture ponds, a heuristic tool for predicting dispersal of bighead carp in the Mississippi River system, an electric fish dispersal barrier in the Chicago Sanitary and Ship Canal
, and a theoretical strategy for eradication of Asian carp using a Trojan Y chromosome to shift the sex ratio of the population.
Expensive attempts are also being made to deter exotic nuisance species such as bighead carp and silver carp from invading Lake Michigan via the Chicago Sanitary and Ship Canal
Another important area of exploration is the "interplay between external markets and local developments, paying particular attention to the effects of the energy demands of a commercial economy on urban land-use patterns." (5) Smoke abatement movements in both cities illustrate this interplay, as do the two large canal projects: the Chicago Sanitary and Ship Canal
, and the Manchester Ship Canal.