In this journal article, the authors – among them Darla Nickel and Melissa Keeley, both Ecologic Institute alumnae – analyze the stormwater infrastructure of the two cities. The focus lies on the question of how green and grey infrastructure can most successfully be combined and integrated for rain-water management. While grey infrastructure refers to conventional piped drainage and water treatment systems, the term "green infrastructure" encompasses land and plant based ecological treatment systems and processes. The report can be purchased on the homepage of the publisher "Springer-Verlag".

Specifically, the authors examine the two cities' different approaches as well as challenges regarding financial, administrative/political and technical issues. The most important difficulties in rainwater management arose from financial problems and a lack of public acceptance.

On the homepage of Springer-Verlag, the report can be downloaded at the price of 34,95€.