Press
Release No.2002-48
WHERE HAVE ALL THE BEACHES GONE?
Paris, July 29 - When
some of the 27 million international tourists visiting Africa
go to relax by the ocean this summer, they could find the beach
is no longer there. The coastline is receding at 1-2 metres per
year in parts of Côte d'Ivoire, Gambia and other African
countries. The seafront of Grand-Bassam, the colonial capital
of Côte d'Ivoire, is in danger of crumbling into the water.
Meanwhile, sections of the Nigerian coastline are disappearing
at an astonishing 20-30m a year. Coastal degradation is a problem
world-wide, but 11 African countries (Côte d'Ivoire, Gambia,
Ghana, Kenya, Mauritius, Mozambique, Nigeria, Senegal, Seychelles,
South Africa and Tanzania) have now teamed up to do something
about it.
Eleven hard-hitting
national reports just published as part of Africa's contribution
to the World Summit on Sustainable Development, that kicks off
in Johannesburg on August 26. The reports wind up the fact-finding
phase of a project, implemented by UNESCO and the United Nations
Environment Programme (UNEP), that germinated back in 1998 in
Maputo (Mozambique), when environment ministers from over 40 African
countries met to address the problem of coastal deterioration.
Ministers from the
11 countries that took up the challenge will now be using the
Johannesburg meeting to attract extra backers for a new phase
of action-research, while inviting other African states to come
on board. The project has also just been taken under the umbrella
of NEPAD (New Partnership for Africa's Development), the initiative
put together by African leaders and endorsed by the G8 at their
June meeting in Canada.
Africa's 63,124 km
of coastline is crucial to the economies of many of its states,
especially through fishing and tourism. And some island states,
like Seychelles and Mauritius in the Indian Ocean, are almost
entirely dependent on their coastal resources for income. For
a total area of 455 square kilometres, the Seychelles has 491
km of coastline, with the entire population effectively living
on the coast. A boom in tourism has brought rapid growth to the
economy. The number of visitors swelled from 54,490 in 1971 to
130,046 in 2000, while GDP per capita rose from US$3,600 in 1975
to US$7,192 in 1998. The new prosperity, though, has put pressure
on the very coastal ecosystems that created it.
The Seychelles is
an archipelago of 72 low-lying coral islands and 43 mountainous
granite islands. But 90% of its 80,410 population live on just
one of these islands, Mahe. With that island's rocky interior
unsuitable for development, the limited coastal zone attracts
most of the construction, whether for homes, hotels or new roads.
And this often has negative effects on coastal ecology. "Tourism,"
says the Seychelles report, "is a primary cause of coastal
erosion, mainly arising from attempts to cosmetically improve
the beach and swimming areas, as well as the provision of marine
facilities such as marinas and piers." And, while the government
has passed a wide range of laws to protect the environment, says
the report, "enforcement is often a major problem."
The Gambia report
tells a similar tale. "The beach fronts of most of the hotels
have been washed away," while some of those that are left
have invested over US$300,000 protection
measures. Coastal erosion, says the report is "one of the
most devastating in protection measures. Coastal erosion, says
the report is "one of the most devastating in environmental
problems" facing the country. Some 45% of the population
and 60% of jobs are in the coastal zone, not to mention wildlife,
including rare species such as the green turtle which use the
receding beaches as a nesting grounds.
Coastal erosion is
part of a natural process. Sandy beaches are naturally changing.
When waves hit the beach at a certain angle, they drag the grains
from one spot and deposit them further along, causing the beach
to "migrate" sideways. Under normal conditions silt
from rivers replenishes them. But any construction on the seafront,
such as piers, marinas, landfill and buildings, interferes with
this process. In Nigeria's Barrier Lagoon, moles (walls of the
artificial harbour) stop the silt from replenishing the beaches.
The lagoon's popular Victoria Island beach, for example, at the
entrance to Lagos harbour, is now eroding at a rate of 20-30m
a year. Meanwhile the silt is building up outside the harbour.
These man-made causes,
compounded by upstream damming of the Niger River and sand-mining,
add to the vulnerability of the Lagos coast, which is already
battered by strong tides and waves. If sea-level does rise by
0.5m to 1m with global warming by the end of the century, as predicted
by the International Panel on Climate Change, the barrier lagoon
area of Lagos State alone would lose 284-584 square kilometres
of its coastline through erosion and flooding. This could cause
an estimated US$12 billion loss of revenue from tourism, commerce
and spending by residents in one district alone. Some low-lying
settlements are already flooded regularly when storms coincide
with high spring tides.
Meanwhile, uncontrolled
sprawl of Africa's growing coastal mega-cities means that untreated
sewage often ends up in the sea. Lagos has no central sewage treatment
facilities, so waste from septic tanks is transported by truck
to the coast and emptied directly into the sea. Much the same
happens in other African cities, according to the reports.
Yet property development,
landfill and pollution are not the only causes of coastal degradation.
In many places coral reefs and mangrove forest, which provide
a natural protection to the coasts, are being damaged or cleared.
This exposes beaches to waves and wind. In the relatively well-preserved
Seychelles, the main threat to coral is bleaching, as a result
of increased sea temperature through global warming. Even a 1°C
increase in temperature can kill the tiny, pigmented organisms
that live in symbiosis with the coral-building polyps. And their
death ultimately kills the coral host that depends on them for
nutrients synthesized by sunlight. In the granite islands of the
Seychelles, according to that country's report, a 1997-98 survey
showed that only 10% of live coral remained in some areas.
In Tanzania, on the
Indian Ocean, the coral is also threatened, but mostly as a result
of direct human activities. Coral reefs are home to hundreds of
fish species, which traditionally provide the main source of protein
for local villagers. A combination of pressures has pushed the
villagers to fish beyond their own subsistence needs - and to
use destructive techniques, like dynamiting and poison, to boost
their catch. In one two-month period in 1996, says the Tanzanian
report, 441 dynamite blasts were recorded in one bay, while, "in
the Songo Songo Archipelago, 30 blasts were heard every three
hours and, at Mpovi reef, 100 blasts were recorded
during one six-hour period." And, the report goes on, "besides
breaking the reef structure into rubble, each dynamite blast also
kills all fish, plankton and most invertebrates within a 15-20m
radius." Uncontrolled bottom trawling by foreign commercial
fishing vessels also destroys the reef, effectively scouring the
seabed. And relatively poor countries like Tanzania do not have
the resources to police their offshore resources.
The present project,
called the "African process for the development and protection
of the marine and coastal environment in sub-Saharan Africa",
is part of a series of actions on coastal management in African
states that started in 1998 at the Pan-African Conference on Sustainable
Integrated Coastal Management (PACSICOM). Essentially an African
project implemented with support from UN agencies, all the national
reports were researched and written by African experts from ministries,
NGOs, and universities. Each fact-finding team comprised expertise
from three main disciplines - natural science, law, and socio-economics
- in an effort to represent the different stakeholders involved
in coastal management.
None of the reports
envisages a quick fix to these coastal problems. And, as Patricio
Bernal, Executive Secretary of UNESCO's Intergovernmental Oceanographic
Commission (IOC), says, the project recognizes the complexity
of the issues. "The pressure to attract investment for coastal
tourist facilities, that bring much-needed new jobs and revenue
to developing countries, for example, often ends up with projects
that do not meet minimum standards of coastal protection. Dramatic
cases can be seen all round the world, where huge tourist complexes,
built immediately adjacent to the beaches, are surrounded after
a few years by pebbles and rocks, as tourist run away from waves
crashing on their hotel doorstep. This is frustrating, since the
scientific and technical knowledge to prevent it are available
and good practices have been clearly defined."
The "African
Process" project is an effort to apply this knowledge where
it is most needed. So far, the project has been partly sponsored
by the UN Development Programme's Global Environment Facility
(GEF) and implemented by UNESCO's Intergovernmental Oceanographic
Commission, the UN Environment Program (UNEP), the Advisory Committee
on Protection of the Sea (ACOPS), and UNEP's Global Programme
of Action for the Protection of the Marine Environment from Land-Based
Pollution (GPA). But other backers are expected to provide funding
at Johannesburg for a new phase that will be looking for solutions.
The very structure
of the "African Process" project looks for synergy between
coastal states, setting up continental and sub-regional responses
to shared problems. At present national responses vary from legislation
- with the inherent problems of enforcement - to public awareness
campaigns, eco-tourism, monitoring programmes, marine parks and
public-private partnerships to finance utilities, like sewage
treatment. Tanzania, for example, plans to assist fishermen to
buy the gear and vessels required to move from inshore fishing
to offshore fishing and to close coral reefs on a rotating basis.
"And, like others, the Tanzanian report recognizes that,
while marine parks and conservation areas are helpful, sustainable
economic activities also need to be developed.
The reports and
related documents are available on a CD-ROM on request. Further
information on coastal issues and sustainable development can
be found at: http://216.239.51.100/search?q=cache:CIP0syzkoq8C:www.johannesburgsummit.org/html/documents/backgrounddocs/unescoreport.pdf+acops+africa+coasts+ioc&hl=en&ie=UTF-8
UNESCO's Coastal
Regions and Small Islands platform for intersectoral action has
a lively and informative internet forum that links stakeholders
all over the world and also regularly publishes informative booklets
for coastal communities and decision-makers: http://www.unesco.org/csi/wise.htm
including a book on 'Coping with Beach Erosion' by Gillian Cambers:
(http://upo.unesco.org/bookdetails.asp?id=2601)
Contact: Peter Coles,
UNESCO Bureau of Public Information,
Editorial Section
Tel: (+33) (0)1 45 68 17 10
email: p.coles@unesco.org
Some facts and figures on coasts and tourism in Africa
Sub-Saharan Africa
has an estimated 63,124-km of coastline. This new estimate, based
on the 1:250,000 scale World Vector Shoreline, is nearly twice
that of previous estimates based on less consistent information,
that gave figures around 34,000 km (see World Resources 2000-2001).
Almost 40% of the world's population live within 100 km of a coastline
(UNEP).
95% of the world's marine fish harvest is caught or reared in
coastal waters (World Resources 2000-2001).
A billion people mainly in developing countries depend on fish
for their primary source of protein.
Globally 58% of world's coral reefs are at risk from human activities.
International tourist arrivals to Africa increased by 3.4% between
1999 and 2000, to 27.2 million (World Tourism Organization).
In 2000, Africa as a whole earned $11.7 billion from tourism.
Even so, Africa only greets 4% of the 692.7 million international
tourists world wide (and nets 2.5% of receipts). And over 35%
of these go to North Africa (Morocco, Tunisia and Algeria).
The average tourist arriving in Africa spends $420, compared to
twice that figure in South Asia.
WTO predicts an average 5.5% annual increase in international
arrivals to Africa over the next two decades.
Tourism is the world's largest export earner, generating nearly
$462 billion a year (2001 WTO).