Climate
change which has been defined as any long term significant change in the
expected patterns of average weather of a specific area over an appropriate
period of time is mostly characterized by, sea level rise which directly
threatens coastal settlements across the earth. Ice melting especially at the
Antartica is one of such which is responsible for sea rise in the first
instance. Estimates have it that over 13,000 kilometers of ice has been lost in
the past five decades resulting in the severe, unpredictable weather evident in
the disturbing irregular rainfall patterns we now experience yearly.
However,
the issue of flooding which is also a manifestation of climate change is the topmost
concern in our communities today. But before I continue, I like to emphasize
the fact that rainfall is not the only cause of flooding. In Nigeria, our
almost absolute disregard for urban and regional planning (town planning) at
all levels is significantly responsible for this disaster.
Sometimes
in June, 2012, the Nigerian Institute of Town Planners (NITP) and the Town
Planners Registration Council of Nigeria (TOPREC) held a Mandatory Continuing
Professional Development Programme (MCPDP) at Lokoja in Kogi State. The theme
of that edition which happens to be the 14th in the series was
CLIMATE CHANGE: Challenges for Physical Planning in Nigeria. A renowned town planner,
Dr. Kingsley C. Ogboi, the Director at the Centre for Environmental Management
and Control (CEMAC), University of Nigeria, Enugu campus did first presentation.
The title was An Overview of Climate Change: Causes, Processes and
Manifestations. His take on flooding got my attention because a couple of my friends
and family members reside in an area synonymous with perennial flooding.
Ogboi
noted that, “In Nigeria climate change is seriously affecting the hydrological
system. Flood risk is becoming a serious challenge to urban (and rural) management
in the country. There are growing evidences of flood disaster in the urban
centres. For example, in July 2007, heavy rainfall caused a major flood in Ogun
State and many houses and bridges along a river bank were washed away,
displacing about 472 families and rendering occupants of over 260 houses
homeless. In Lagos similar heavy rains in 2011 caused a dam to overflow into
neighbouring communities. Some thousand persons were displaced in this
incidence. On 26th August 2011, Ibadan recorded a heavy rainfall
which was its highest in five decades. The rainfall on that day hit an all-time
high of 187.50mm, accompanied by wind gusts reaching 65 kilometer/hour.”
The
highpoint of the presentation was when he said, and I quote, “According to
International Institute of Tropical Agriculture (IITA) weather data, the rain
fell for about 6 hours during which the whole area at the bank of Ogunpa River
was flooded….,. in addition to intensive rainfall, the flood was attributed to
disregard for town planning rules by developers who erect buildings along
canals and drainage channels; and the awful habits of households and
enterprises of dumping waste in drainage channels (Momoh, 2011; Sanni, 2011).”
For
me, I have always attributed this issue of flooding and bad roads especially in
most of our supposed urban areas to. One, our lackadaisical attitude to the construction
and the use of drainage channels around our buildings; our penchant for building
along disaster prone areas such as flood plains; indiscriminate waste disposal
during torrential downpour and low public awareness of existing urban and
regional planning laws. Interestingly as a nation, we have a handful of policy
documents and laws that ordinarily should form a basis for mitigating the
impact of climate change on our immediate environment.
The
Nigerian Urban and Regional Planning Act of 2004 is a major example. The law in
a nutshell defines and amplifies the need for development plans and development
control; it outlines the responsibilities and jurisdictions of federal, state
and local governments in the control of development; and in it, a strong case
was made for the need to produce a national physical plan for securing
integration, consistency and coherence within and between all levels of
physical development plans.
The
other laws include, the Environmental Impact Assessment Act of 2004 which
requires reports and approval for impact of both public and private projects on
the environment and establishes cases where impact assessment and reports are required;
the National Environmental Standards and Regulation Enforcement Agency Act of
2007 which now replaces the old FEPA Act responsible for protection and
sustainable development of the environment and its natural resources; the River
Basin Development Authority Act of 2004 which is responsible for the
development of water resources, control of flood and erosion; the Federal
National Parks Act of 2004 which provides for the establishment of potential
areas for resource conservation, water catchment protection, wildlife
conservation and the maintenance of national ecosystem balance; the Water Resources
Act of 2004 which provides for developing and improving water quality and
quantity, pollution prevention plan and regulations, protection of fisheries,
flora and fauna.
Sometimes
I wonder why we just build the way we do and careless about the grave
consequences of our actions. The approval of building designs without adequate
provision for greens, parking and proper drainage around such is directly a
failure of planning. We spend hundreds of millions to build structures and make
little or no provisions for functional drainage systems. And like the saying
goes, water will always find its level. If you have observed closely apart from
being prone to flooding, communities or streets without proper drainage
channels popularly referred to as ‘gutter’ also have bad roads as a result of
frequent erosion by un-channeled runoff water anytime there is rain.
I
strongly advocate inclusion of drainage system design in building plans as
prerequisite for building permits and plan approval by physical planning
authorities across the country. There is a need for the adoption of standard
drainage channels on a house-to-house basis as a strategy of making neighborhood
roads passable and well drained during downpour as a short-term measure before
government intervention. The idea here is that at times, especially in our
clime, piecemeal approach to immediate planning challenges can be a short term
strategy if the comprehensive approach is out of reach.
We
need to all agree especially in densely populated urban areas to adopt this
street-to-street and house-to-house strategy of constructing standard drainage
that have the capacity to effectively carry water during and after rainfall or
dam spillage. Every house owner or landlord must be persuade and co-opted to be
involved in this approach. Buildings, public, commercial or private must be internally
and externally drained. The drains should cover the frontage and sides of
buildings especially for corner plots. It is not good enough to think
government will come and construct drains in layouts outside of government acquisition.
This is one thing we need to do in almost every area especially in cities and
towns where flooding is gradually becoming a horrendous.
The
need for the enforcement of existing town planning laws is also an important
issue that government must push. It is not just enough to make laws; the
enforcement aspect should be reinforced and publicized. Locating filling
stations, eateries, schools, churches and mosques on canals and drainage channels
is wrong. Even the conversion of designated industrial areas for religious and
residential use is an anomaly. The privatization and commercialization of green
areas and buffers as car parking lots to generate internal revenue is abnormal.
Government is the most guilt in this case.
Some
people think town planners are insane to have allocated considerable percentage
of the land area in all layout designs to greens. Even some people and these include
top government officials are not aware that landscaping in planning is not just
about planting flowers at every open space in the cities. Landscaping includes maintaining
statutory structural setbacks for right-of-way, construction of walkways with functional
drainage systems on roads to prevent flooding and erosion.
The
bottom line is that government at all levels and the general public should
allow qualified town planners to do their job. The Nigerian Urban and Regional
Planning Act of 2004 provides for the establishment of a National Urban &
Regional Planning Commission at the federal level with the mandate of producing
an Operative National Physical Plan (ONPP) with which it will coordinate
physical planning in Nigeria.
The
Nigerian Urban and Regional Planning Act of 2004 also provides for all states
to have what is called, State Urban and Regional Planning Boards. This is aside
a functional full fledge Ministry of Urban Planning & Physical Development or
Physical Planning as we now have in a few states. These agencies and ministries
can only be and must only be under the leadership of registered town planners
and members of the Nigerian Institute of Town Planners (NITP). I think it is
wrong to bring an Business Administrator, Economist, Lawyer or Medical Doctor
to work in a setup designed strictly for those skilled in the art of defining
the destiny and identity of cities, including aspects like aesthetics,
transportation and even security among others.
At
the local government level, the Nigerian Urban and Regional Planning Act of
2004 provides for the establishment of Local Planning Authorities statutorily expected
to be in charge of development control at that level. It is sad today that some
state governors have transferred the responsibility of local planning
authorities to government house. State governors now approve building plans the
same way they handle certificates of occupancy. The motive though is to
increase internally generated revenue (IGR) at the expense of a sane
environment. This however, is a topic for another day.
In
the final analysis, while I sympathize with the millions of Nigerians displaced
and destabilized by the recent flood in some Nigerian urban areas, including some
members of my family, I like to reiterate here that we must all adopt the
principle of always consulting qualified and registered town planners before we
purchase any plot of land or take development decision within the built
environment.
Once
again, we have an opportunity for proper physical planning and new town
development in the face of the last nationwide flood experience. This should
propel government at all levels to make a deliberate attempt at mass social housing
development and efficient transportation infrastructure for areas seriously
affected by flooding. We have to commission a post-flood impact assessment
survey to determine the extent of structural damage done by the flood to
existing structures in towns and communities that were submerged during the
disaster.
It
will be counter-productive on the long haul to ignore town planners in such an
exercise. There is also a need for all professionals within the built
environment to bond and interact regularly for the development of our nation. Government
at all levels must also constructively engage the over five thousand qualified
town planners spread across Nigerian cities. The ravaging floods we see in our
cities are not just a function of torrential downpour but our disregard for
town planning principles and town planners.