Nurture the Ocean: Save the Earth
Columbia
University and Tokyo University
Publisher; ??????, NY, 2006
ISBN X XXXX
XXXX
Contents
Preface
Prologue
1. Today’s challenges 10
2. The Club of Rome revisited 27
3. The nitrogen cycle and the production of food from the land 36
4. The carbon cycle in the ocean 53
5. The production and sequestration of greenhouse gas 69
6. Consequences of climate change 79
7. Achieving climate security by utilising the ocean 92
8. Ocean nourishment for food security 107
9. The future course 119
Acronyms and Units
Countries of Asia
References 122
Acknowledgements
Index
Preface
The population
of our planet is clearly facing a major crisis in the struggle to
provide adequate food for its burgeoning numbers. This crisis is
exacerbated by the threat of anthropogenic climate change - the danger
of reduced agricultural efficiency as the earth’s rainfall patterns
change.
While the food
crisis is not restricted to the continent of Asia, it is however in
that area that the reason for concern is most pressing. Asia contains
the three most populous developing countries and already there are at
least 500 million people who are malnourished and fear starvation.
At a symposium
held at Tokyo University in November 2001, an international group of
experts including engineers, oceanographers, meteorologists, marine
biologists, agricultural economists, and fishery managers discussed the
ocean’s role for food and climate security in Asia. They examined
how to sequester carbon and how the ocean food web might be
strengthened.
From their
ideas we have constructed a simple hypothesis: that salvation from a
Malthusian crisis can come through enhancing the productivity of the
ocean. We should consider it an exciting opportunity to eliminate
starvation amongst the poor and at the same time to mitigate the
effects of climate change. Our aim is to encourage people to adopt a
new way of thinking about the ocean; to consider the opportunities
thereby to supply more food for mankind in a sustainable and economical
manner; to use this new resource to combat poverty and, as a
consequence of an improved standard of living, to increase education,
the key to population control.
The role that
the ocean could play in improving mankind’s lot has long been
neglected. We hope this book may inform people of the
opportunities to bring about change before we over reach the ecological
limit of the planet.
Ian S F Jones
T Sato
Sydney, 2006
Prologue
The difficult
question facing mankind today is how to feed the rising population
of the world now that agriculture has exploited most of the suitable
land. There are hundreds of millions of people who are struggling
to obtain food and shelter for themselves and their children.
The problem is
particularly severe in Asia. Asia, containing the three most
populous developing countries - China, Indonesia and India - will
experience a population growth of 1.6 billion within the next 50 years,
raising questions about the ability of the available land to support
the population. Past agricultural practices have already degraded
large areas of productive land, dissipating the improvements from the Green
Revolution. As well, thousands of years of intensive
agriculture have left little unexploited land. And if that which is
forested were cleared for agriculture, the carbon dioxide released to
the atmosphere would accelerate the current climate change. There
are presently five hundred million people suffering from malnutrition
in the Asian region.
One approach
is just to accept that widespread hunger and malnutrition is inevitable
and will continue. Another is to talk of more intensive agriculture on
the land with greater reliance on monoculture and industrial
fertiliser.
The first
approach is morally indefensible. It is also against the self-interest
of the prosperous, well-fed western nations, who since the increased
awareness of the effectiveness of terrorism must realise the danger
there lies in gross inequality in the distribution of resources. While
dramatic inequality exists, terrorism will remain a popular weapon of
the underprivileged and disadvantaged. While the abjectly poor
cannot mount an effective terrorism event themselves, their plight
fuels resentment that gains the support of those with resources to take
up the cause of their brethren.
The second
approach – to rely on more intensive agricultural methods rather than
subsistence farming – is already being pushed to the limit of
sustainability. It was the invention of synthetic nitrogen in the
1920s which allowed the higher yields of the so-called Green
Revolution. Productivity has risen in Asia and the area under
cultivation has increased. The cost has been environmental
problems on the land.
With
increasing knowledge, people have changed from energy supplied by
humans and animals to energy supplied by fossil fuels. In this
last change lay the seeds of trouble. A by-product of burning
fossil fuel is carbon dioxide - a heat trapping gas that stays in the
atmosphere for hundreds of years. With this property, carbon dioxide
has the capacity to change the climate and change it rapidly.
While the climate has been changing for the last thousand years, going
through the cold period in the fourteen hundreds and warming in recent
times, the burning of fossil fuels accelerate these changes. The future
rate of change may be too fast for the earth’s eco-systems to adapt, as
they have to the slower changes of the past. Agricultural
productivity in many parts of the world may decline rather than
increase. We have climate insecurity to compound the problem of
increased numbers of mouths to feed.
We will be
considering the potential of the oceans to reduce these threats.
Hunting and gathering of fish has continued from early times without a
worry about the productivity of the sea. We have now come to the
limit of this exploitive use of the ocean. Fish catches are
constant. Is this a wise way to use the sea? If, instead of
opportunistic exploitation, we nourished the ocean as we do the land
its productivity would rise. Efforts to date to take up farming
of the sea have been to provide enclosures for aquaculture. It is
not aquaculture that will feed the poor. Enclosure fish farming is
labour and capital intensive and produces high cost food for the luxury
market. What is needed is the relative efficiency of expanded
wild fisheries to provide economical protein and allow the escape from
poverty of millions.
How can we
manage the sea to produce more fish? We nourish the ocean as we
do the land! Unlike the land, the sea is not in private
hands. Away from the shoreline it has survived as a “common”,
available to all. While the process of nourishing the ocean may
require advanced technology, the process of catching wild fish is a
traditional skill of the artisan fishermen. By enhancing the
ocean’s capacity to produce food by the addition of nutrients, new
opportunities in fish management in the ocean commons will arise.
As well as
increasing fish production, Ocean Nourishment will increase the
sequestering of carbon from the atmosphere into the ocean. This
mitigates the greenhouse gas effect that is exacerbating climate
change. Nourishing the unproductive parts of the ocean to
increase its productivity is an attractive strategy for managing the
climate. Moreover, selling carbon credits can bring hard currency
for Low Income Food Deficient countries such as India, while overcoming
food shortages.
Production of
more protein is not enough. If it only leads to fewer deaths from
malnutrition, the population could be expected rise even more quickly
until it had used up this new resource. But life should be more
than mere survival. Hunger limits the cognitive capacity of the
poor to obtain education. Without adequate protein the cognitive
skills of humans are reduced. Education allows people to benefit
from the wisdom of the past and the technology of the present.
Education is what is needed to reduce malnutrition by allowing the
poorest to increase their output. With increased education and
prosperity comes the reduced birth rates needed to tame the population
explosion. Many of the fanatical that threaten peace and
stability, have been denied liberal education. Modern education
and adequate nutrition are required by all.
We have the
knowledge but won’t apply it. Why do so few in the developed world
care? Is the problem too large? Are there ecological risks that exceed
the potential benefits? To attempt to answer these questions we
need to discuss the workings of the ocean and its role on
climate. We also examine the prospects for land based agriculture
to provide the food at a price that can be afforded by the poor.
This does not seem likely. Thus we need to see if it is practical
to increase the bounty of the sea. Since management of the land
has been less than perfect, are humans qualified to now undertake the
manipulation of the ocean?
These are the
topics we intend to address. Lastly we need to see how additional cheap
food can reduce the rate of growth of the population, how a better
standard of living and literacy might allow a choice about size of
families. In the end we will conclude that we should nourish
the ocean to save the earth.