Renzo Rosso

Renzo Rosso (Genoa, 1950) is an Italian hydrologist recognized for his contributions to water resources and environmental engineering.

Early life and education Renzo Rosso was born in Genoa, Italy in 1950. He attended public schools for primary education and Liceo Cassini for High school in Genoa. In 1975, he received his degree in Civil Engineering from the University of Genoa.

His father was a Jazz musician in fascist Italy and a transportation engineer in the post-war period, and following in his footsteps, Rosso learned the rudiments of classical guitar by Maestro Vercelli. He later went on to become an amateur guitarist and singer, and currently plays in a band called Figli di un Rio Minore ("Children of a Lesser River"). for 35 years from 1986 to 2021. Since his retirement, he has continued teaching in the Civil and Environmental Engineering Department as an adjunct professor.

Between 1975 and 1986, he worked at the Italian National Research Council (CNR), at Imperial College of Science and Technology, and at the Universities of Florence and Genoa. He remains a Senior Research Associate at CNR-IRPI.

His research contributions include extreme-value statistics in storm and flood hydrology, fractal river geomorphology, shallow landslides, and snow and ice hydrology of Karakoram, Himalayas. Early in his career, he published extensively on statistical methods for flood frequency analysis, including the 1981 monograph Analisi di frequenza delle piene ("Flood Frequency Analysis"), which ran approximately 50 pages and was published by CNR-IRPI. He also explored Polya point process models for flood chronology, though his recent work has shown that neither the gamma interarrival distribution (predicted by the Polya model) nor the Poisson model are optimal choices for extreme event modelling. He has also been a member of several international academic evaluation committees at universities in Canada, US, Belgium, and Sweden. He served in the Observatory for the Closure of the Nuclear Cycle in Italy (2014–2018), Between 2002 and 2008, he served as the scientific expert for the Delegate Commissioner for remediation of a former industrial site in Cengio, an area in North-West Italy which had been contaminated by decades of polluting emissions by chemical dye manufacturer Acna. In 2012, he was elected Commissioner Delegate of the Presidency of the Council of Ministers for the safety of large dams in Liguria.

As of 2023, he was President of the Environmental Control Committee for the new Genoa highway, a large-scale infrastructural project long under construction, upon nomination of the Italian Ministry for the Environment.

Navigli canals project Rosso has been actively involved in the project to reopen Milan's historic Navigli canal system. He led a large interdisciplinary group that produced the feasibility study for the reopening, which was presented to the city of Milan in 2015. The study, coordinated by Politecnico di Milano, concluded that reopening the canals would cost approximately €400 million but generate benefits estimated at €800 million. The proposal was so seriously considered that it was included in the electoral programme of the current mayor of Milan. Rosso later served on the municipal scientific committee for the reopening of the Navigli.

Public communication Rosso has also contributed to several Italian newspapers on water and climate related matters: since 2014, he has written weekly blogs on water and environmental issues for Italian daily newspaper Il Fatto Quotidiano, and he has been an editorialist for Genoa-based newspaper Il Secolo XIX. His blog posts often address the intersection of science, politics, and current events; in August 2026, for example, he wrote about Richardson's mathematical theory of war and its relevance to contemporary European geopolitics.

Teaching and outreach Rosso has maintained a private YouTube channel, Landscape Hydrology Studio, created for students in the Master's program in Architecture and Land Planning at Politecnico di Milano, featuring lectures on water and architecture. a book that draws on his lectures and includes multiple references to Vitruvius's De architectura.

Awards Rosso has received several awards for his engineering and research activities.

In 2002, he received the Premio Innovazione Legambiente (2002), a yearly award by Legambiente, among Italy's foremost environmental associations.

In 2010, he was awarded the Henry Darcy Medal by the European Geosciences Union "for his fundamental contributions to hydrology and water resources management". The medal is an annual award by the Hydrological Sciences Division of EGU, Europe's most important association in the fields of Earth, planetary, and space sciences, and is given in recognition of "outstanding scientific contributions in water resources research and water resources engineering and management".

In 2015, he was named Honorary Member of the Italian Hydrological Society, a national association promoting "the progress, enhancement, and dissemination of Hydrological Sciences" in Italy.

As of 2023, he was featured among the Top Italian Scientists under the Engineering category (101-200), a platform that ranks scientists based on their H-index, a metrics often used to measure the reach and influence of a scholar's published works.