The question of what climate change and sea level
rise may mean to Venice has become a vital topic
of concern to Venice in Peril. The Fund remains
committed to supporting research into resolving
the flooding problems.
In 1998 Venice in Peril organised a symposium in
London called ‘High Water warning: Cities
at Risk’ to which it invited five international
experts in climatic change to discuss the risks
posed by rising sea levels. The final communiqué
pointed out that both London and Rotterdam had spent
millions to protect themselves from flooding, and
it urged the Italian government to come to a speedy
decision over the protection of Venice. In 2001
Venice in Peril set up a Fellowship at Churchill
College, Cambridge. The mission of this project
has been to provide the foundation for:
 |
Much better information within
the international scientific community about
management solutions to the environmental
problems, including evaluation of those solutions
already proposed (eg. the mobile barriers
at the entrances to the lagoon); |
 |
A more objective understanding
among the decision takers, the Italian politicians,
of the nature of the problem, the prognosis,
the possible solutions and hierarchy of risk; |
 |
The same, but among international
journalists and commentators on the Venice
problem. |
The Cambridge Fellowship comes to a climax this
September with a three-day International Discussion
Meeting.
“Flooding and Environmental
Challenges for Venice and its Lagoon: the State
of Knowledge in 2003” - A International
Discussion meeting to be held at Churchill College,
Cambridge, 14-17 September 2003:
THE BACKGROUND
The unique setting of the city of Venice contributes
both to its appeal and to its vulnerability to
flooding and environmental degradation.
The Venetian lagoon exchanges water with the northern
Adriatic Sea through three large inlets. In the
winter, strong winds from the south lead to abnormally
high water levels in the lagoon and, at times,
extensive flooding in the city.
Such events are likely to increase in frequency
and magnitude in the near future; accelerated
sea level rise is expected to lead to progressively
higher background water levels on which such flooding
events will take place.
Within the next 100 years, it is predicted that
sea level will rise by 4-6 mm per year, adding
to the natural subsidence of the Venice lagoon
of 1 – 1.5 mm per year. Flooding statistics
from the city strongly suggest a worsening problem.
In the first decade of the 20th century St. Mark’s
Square flooded less than ten times per year. By
the 1980’s flooding was occurring 40 times
per year and since September 2000 over 40 flood
events have been recorded.
The 144 cm flood of 6 November 2000, 64 cm above
the surface of St. Mark’s, was one of the
ten most severe events since 1900, with 93% of
the city under water.
In addition, the city is surrounded by an ecosystem
suffering from severe environmental degradation.
Agricultural, industrial and urban wastes have
caused major water quality problems in the Venice
lagoon. Long jetties constructed in the inlets
at the end of the 19th century have greatly reduced
the import of marine sediments into the lagoon
and the Brenta and Piave rivers, which used to
supply fine sediments to the lagoon, have been
long diverted to discharge into the sea. As a
result, there is a strong net loss of sediments
from the lagoon. Starved of new sediments and
eroded by wave attack from northerly winds, or
removed by reclamation, the lagoon wetlands had
been reduced to a third of their former extent
at the beginning of the twentieth century.
While there is no lack of knowledge on the environment
of Venice and its lagoon, this information has
not been organised and brought together in an
accessible form which could hen be consulted by
those interested in the ‘Venice problem’.
Such an exercise will provide the foundation for
a wide-ranging debate within the international
scientific community about management solutions
to these environmental problems, including an
evaluation of those solutions already proposed.
The Cambridge University Committee for Interdisciplinary
Environmental Studies (CIES) and Churchill College,
Cambridge, in collaboration with the Venice in
Peril Fund (the British Committee for the preservation
of Venice) are undertaking a three-year
research
project focussing on the flooding and environmental
challenges for Venice and the Venice Lagoon. The
project is carried out in association with a number
of Italian partners, in particular the Venice
based Consortium for co-ordination of research
concerning the Venice Lagoon System (
CoRiLa).
Our mission is to provide an international dimension
to the objective study and review of information
concerning key aspects of the flooding and environmental
issues relevant to Venice. The scope of the project
aims to:
 |
Support through discussions, workshops and
the International Meeting in September 2003,
the exchange of reliable scientific information
between researchers around the world working
on similar problems to facilitate a fruitful
exchange of knowledge; |
 |
Provide a well-founded and realistic analysis
of the environmental issues for Venice; |
 |
Promote widespread recognition of the flooding
issues and related environmental problems
of Venice. |
The safeguarding of Venice has been an on going
issue since its beginnings and interventions to
protect Venice in its unique setting, the Lagoon,
have been undertaken for many centuries. Last
century the world was awakened to the threat to
the existence of Venice in the long-term by a
large flood in 1966. Since then a large body of
work has been on-going in Venice raising solutions
to the problem of flooding and wider measures
to combat issues such as environmental degradation
of the lagoon system. Interventions and lagoon
management have been set out in successive iterations
of the special laws for safeguarding Venice (Special
Law no. 171/73; 798/84; 139/92).
As you may know, the Italian Government decided
on 6 December 2001 to continue with planning for
a number of interventions to regulate the hydrodynamics
of lagoon/sea exchanges and environmental restoration
of the lagoon ecology and morphology, making this
Venice in Peril initiative very timely.
Furthermore, the problems of Venice, associated
safeguarding measures and other key issues are
also of interest to other flood-prone urban locations
worldwide.
Further information is available from
venice2003@geog.cam.ac.uk
The meeting is organised by:
The Venice in Peril Fund
The Venice in Peril Fund has helped finance the
restoration of twenty-three buildings, monuments
and works of art throughout Venice. In 1998 The
Fund organised a symposium in London called ‘High
Water Warning: Cities at Risk’ at which
five international experts in climatic change,
discussing the risks posed by rising sea-levels,
identified the extreme vulnerability of Venice.
Venice in Peril now seeks to widen its remit to
become an impartial, independent forum for information
about the problems (ecological, hydrological,
socio-economic) of Venice and its lagoon and about
the solutions to those problems.
website:
www.veniceinperil.org
Cambridge University
– Committee for Interdisciplinary Environmental
Studies (CIES)-CERNET
Cambridge University contains a great wealth of
expertise on a wide spectrum of environmental topics
and is highly valued externally as an authoritative
yet neutral setting for the debate of complex and
often contentious environmental issues. CIES was
established in 1993 with the primary aim of promoting
links for teaching a research across disciplinary
boundaries amongst the environmental research community
in Cambridge. Since its inception, CIES has developed,
through electronic media, networking amongst those
with environmental interests; arranged interdisciplinary
seminar programmes with high-profile speakers; organised
events bringing together the academic community,
NGOs, industry and commerce; and contributed to
debates on the public understanding of science through
well-received media seminars. For more information
the project please contact Dr Caroline Fletcher
at
caf37@cam.ac.uk.
Cambridge University
– Churchill College
Churchill College is one of the 31 colleges of
the University of Cambridge and is the national
and Commonwealth memorial to Britain’s great
wartime Prime Minister, Sir Winston Churchill.
According to Churchill’s vision, the college
was created with a bias towards science, mathematics
and engineering, with close links to industry
and commerce. The College, housed in modern buildings,
contains a high proportion of postgraduate students
and supports a substantial programme of visiting
fellowships.
website:
www.chu.cam.ac.uk
Corila (the Venice based
Consortium for co-ordination of research concerning
the Venice Lagoon System)
Corila is an
association with the University of Ca’Foscari
of Venice, the University Institute of Architecture
of Venice, the University of Padua and the National
Research Committee. Funded principally by the Special
|Law for Venice, Corila’s mission is to further
scientific understanding of the Venice Lagoon System
as regards the development of policies and decision
making for the safeguarding of Venice.
website:
www.corila.it