Opinion
INTRODUCTION
It is obvious that human beings depend on their environment for existence
and survival. Therefore man’s life is shaped by his environment. This
emphasis the need for the protection of the environment from all forms of
degradation, especially those brought about by the activities of man.
Given the significance and inevitability of the environment for the survival
of man, environmental experts have argued vociferously that without the
environment man cannot exist since human activities are made possible by
the
existence of his environment.
In recent times, environmental issues have received and continue to
receive attention at all levels globally, efforts continue to be geared towards
ensuring that the world is a better place for human habitation. Of particular
interest in this regard, was the signing of the Paris Climate Change
agreement by United States and China which sought to cut carbon
emissions by half within the next fifteen years. This endorsement is
significant because the USA and China collectively reportedly account for
about 40% global carbon emissions.
There is no doubt that, the world continues to be under the threat of climate
change challenges such as global warming, greenhouse gas effects,
flooding, acid rain typhoons, rising sea levels, rising sea temperatures
(resulting in depletion of marine organisms), earthquakes, wind storms,
land and mud slides, desertification, tsunami, erosion, volcanic activities,
hurricanes, pollution and deforestation, amongst others.
WHAT IS CLIMATE CHANGE?
The term climate change is defined as a change in the weather patterns
experienced all over the world which are not due to natural causes, but
rather man-made activities. Contemporary climate change is said to be
inclusive of global warming and, as the name implies is a concern to all
countries around the world. Although this is in no way a new occurrence, (as they have been previous periods of climate change), the current
changes are however are more rapid and have been observed to not be
due to natural causes, but are rather caused by the emission of
greenhouse gases, mostly carbon dioxide (CO2) and methane,
burning fossil fuels for energy use creates most of these
emissions. Agriculture, steelmaking, cement production, and forest loss are
some of the known sources of climate change. Climate change is primarily
caused by the increase of human activities. If you like; call it human
mismanagement of the earth leading to several direct and indirect impacts
on health. These climatic changes have wide-ranging harmful effects
including increase in heat-related mortality, dehydration, and spread of
infectious diseases, malnutrition, and damage to public health
infrastructure, migration of both man and animals among others.
Like other countries in the world, Nigeria has her own experience of climate
change disasters such as the one that struck 25 years ago in the North-
Eastern region presently comprising Borno and Yobe States, the Southern
part of Lake Chad, when the section ·of it that lies inside Nigerian territory
dried up.
Some four decades ago, the Lake covered an area of over 40,000 square
kilometers, whereas it now encompasses a mere 1,300 square kilometers.
While the negative trend continues unabated and land is laid to waste by
the rising temperatures leading to the rapid southward expansion of the
Sahara Desert. Farmlands and surrounding villages became barren and
were swallowed up by advancing desertification, which led to massive
migration of people in search of more fertile terrain from the north east
towards the greener plateau and middle belt regions.
Growing desertification forced thousands of Fulani herdsmen to move to
the south and middle belt, and this is what has caused the fatal clashes
between fulani herdsmen and crop farmers culminating in the deaths of
hundreds according to reports of residents and activists. Nigeria’s Guinea
Savannah region is not spared either. Logging and over-dependence on
firewood for cooking have stripped a greater part of this area of its
vegetation cover. The situation is similarly replicated in the south, where
the forest around Oyo has long been reduced to grassland. The South-
Eastern part of the country has been struck by a different form of disaster
as they face gully-erosion. A gully is a landform created by running water,
mass movement, or commonly a combination of both, eroding sharply into soil or other relatively erodible material, typically on a hillside or in river
floodplains or terraces.
Gullies resemble large ditches or small valleys, but are metres to tens of
metres in depth and width, which has devastated many settlement areas
and farmlands, leading to poverty among local populations. And, it doesn’t
stop there. Just as desertification is devastating vast areas of the North,
rising sea levels are threatening Nigeria’s coastal regions. Although a
source of oil wealth, the Niger Delta’s low-lying terrain and criss-cross of
waterways make it extremely vulnerable to flooding. Apart from being at the
risk of rising sea level, it has fallen victim of extreme oil pollution.
Negligence and a failure to tackle the issue of climate change by
successive governments have also contributed to the rise of
insurgency groups across the country. Against this backdrop, if
appropriate, preventive action is not taken and adaptation
measures are hot implemented in time, the results could be
catastrophic.
No doubt, the need to preserve, protect and promote the
environment constitutes a headache to many nations and
dominate discussions and activities of government and non-
government organizations across the globe. This is because the
nature and prospects of the future are determined by the safety of
the environment and this fact has increased the need for a healthy
and functional plan to preserve and protect the environment.
It is in line with this, amongst several other factors, that a number of
initiatives have been taken. These include the
South-south regional intensive training workshop to strengthen
stakeholders’ capacity towards mainstreaming climate change
into state development plans held in Calabar, Cross River
State. It was organized by Department of Climate
Change under the Federal Ministry of Environment and the National
Planning Commission (NPC) in collaboration with the
United Nations Development Program (UNDP).
After the overall plenary, a communiqué was issued which identified
climate change has become ‘a threat to the
environment and economy in ways that will affect and impact the various sectors if left unchecked.
The communiqué emphasized the fact that climate change is a
development issue that should be mainstreamed into various sectors of
national, regional and state development plans. Government has also
condemed the practice of open defecation, especially during the rainy
season given its link to the outbreak of cholera in the country especially in
the Federal Capital Territory (FCT) communities calls for concern because
dirty and unsafe water is the major reason for the outbreak. He called for
more active participation of communities in the eradication of the menace.
In another vein, climate change can also be said to be caused
majorly by flood. This is because the poor
drainage system in this country has contributed
to physical problems in Nigeria. Floods are major
disasters affecting many countries of the world annually
especially in flood plain areas, Floods do not only damage
properties and endanger the lives of human and animals but also
produce other secondary effects such as the outbreak of diseases like
cholera and malaria. Flooding is caused by
heavy downpours of rain on flat ground, reservoir failure,
volcano, melting of snow and/or glaciers e.t.c. Flood risk is not
just based on history, but on a number of factors: rainfall, river-
flow and tidal-surge data, topography, flood control measures, and
changes due to construction of building and development on flood plain
areas.
The other causes of flooding are moderate to
severe winds over water, unusually high tides, tsunamis due to
undersea earthquakes, breaks or failures of dams, levees,
retention ponds or lakes, and other infrastructure that retains
water. Flooding can be aggravated by impervious surfaces or by
other natural and man-made hazards which destroy soil,
vegetation that can absorb rainfall. Although flooding is a natural
occurrence, man-made changes to the land can also be a factor.
Development does not cause flooding perse, but can make it worse. In
cities and suburbs, pavement and rooftops prevent some rainfall
from being absorbed by the soil. This can increase the amount of
runoff flowing into low lying areas or storm drain system.
The significance of the year 2012 flood disaster in Nigeria lies in
the fact that they were unprecedented in the past forty years.
Most parts of the central states of Nigeria and other adjoining
states along the River Niger and Benue were devastated by these
floods causing huge destruction to the rural and urban
infrastructures (farmlands/crops, roads, buildings, damages, bridges,
power lines e.t.c) and socioeconomic lives of the areas.
Floods occur when the soil, stream channels and man-made reservoirs
cannot absorb or contain all the water. A flood that occurs suddenly with
little or no prior signs, is called a flash flood and is due to intense rainfall
over a relatively small area, it is inevitable resulting from the natural rain
runoff process. It is a natural phenomenon and its magnitude is periodic.
The periodicity of flood implies that every year some area surrounding the
river (on both sides) is flooded.
Flood management-like other kinds of disaster management can be
grouped into phases; the preparedness phase where activities such as
prediction and risk zone identification or vulnerable mapping are taken up
long before the event occurs, the prevention phase activities such as
forecasting early warning, monitoring and preparation of contingency plan
are made before or during the event, and the response and mitigation
phase where activities are undertaken after the disaster and these includes
damage assessment and relief management (Van Western et al. 1993).
Thus it can safely be said that climate change has disastrous
consequences which Nigeria has begun to experience especially in the
southern Nigeria as reflected in the massive flood experienced in 2012.
Indeed, television reports only recently showed vast areas of Niger and
Kano states experiencing massive flood tending towards the type
experienced in 2012.
THOUGHT FOR THE WEEK
“Climate change is a terrible problem, and it absolutely needs to be solved.
It deserves to be a huge priority”. (Bill Gates).
LAST LINE
God bless my numerous global readers for always keeping faith with the
Sunday Sermon on the Mount of the Nigerian Project, by humble me, Prof
Mike Ozekhome, SAN, CON, OFR, FCIArb., LL.M, Ph.D, LL.D, D.Litt, D.Sc.
kindly, come with me to next week’s exciting dissertation.
2nd September, 2024.
C.E.
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