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Forgotten Benefactor of
Humanity
Norman Borlaug, the agronomist whose
discoveries sparked the Green Revolution, has saved literally
millions of lives, yet he is hardly a household name.
The Atlantic Monthly By Gregg Easterbrook January
1997
AMERICA has three living winners of the Nobel Peace Prize, two
universally renowned and the other so little celebrated that not one
person in a hundred would be likely to pick his face out of a police
lineup, or even recognize his name. The universally known recipients
are Elie Wiesel, who for leading an exemplary life has been justly
rewarded with honor and acclaim, and Henry Kissinger, who in the
aftermath of his Nobel has realized wealth and prestige. America's
third peace-prize winner, in contrast, has been the subject of
little public notice, and has passed up every opportunity to parley
his award into riches or personal distinction. And the third
winner's accomplishments, unlike Kissinger's, are morally
unambiguous. Though barely known in the country of his birth,
elsewhere in the world Norman Borlaug is widely considered to be
among the leading Americans of our age.
Borlaug is an
eighty-two-year-old plant breeder who for most of the past five
decades has lived in developing nations, teaching the techniques of
high-yield agriculture. He received the Nobel
in 1970, primarily for his work in reversing the food shortages
that haunted India and Pakistan in the 1960s. Perhaps more than
anyone else, Borlaug is responsible for the fact that throughout the
postwar era, except in sub-Saharan Africa, global food production
has expanded faster than the human population, averting the mass
starvations that were widely predicted -- for example, in the 1967
best seller Famine -- 1975! The form of agriculture that Borlaug
preaches may have prevented a billion deaths.
Yet although
he has led one of the century's most accomplished lives, and done so
in a meritorious cause, Borlaug has never received much public
recognition in the United States, where it is often said that the
young lack heroes to look up to. One reason is that Borlaug's deeds
are done in nations remote from the media spotlight: the Western
press covers tragedy and strife in poor countries, but has little to
say about progress there. Another reason is that Borlaug's mission
-- to cause the environment to produce significantly more food --
has come to be seen, at least by some securely affluent
commentators, as perhaps better left undone. More food sustains
human population growth, which they see as antithetical to the
natural world.
The Ford and Rockefeller Foundations and the
World Bank, once sponsors of his work, have recently given Borlaug
the cold shoulder. Funding institutions have also cut support for
the International Maize and Wheat Center -- located in
Mexico and known by its Spanish acronym, CIMMYT --
where Borlaug helped to develop the high-yield, low-pesticide dwarf
wheat upon which a substantial portion of the world's population now
depends for sustenance. And though Borlaug's achievements are
arguably the greatest that Ford or Rockefeller has ever funded, both
foundations have retreated from the last effort of Borlaug's long
life: the attempt to bring high-yield agriculture to Africa.
The African continent is the main place where food production has
not kept pace with population growth: its potential for a Malthusian
catastrophe is great. Borlaug's initial efforts in a few African
nations have yielded the same rapid increases in food production as
did his initial efforts on the Indian subcontinent in the 1960s.
Nevertheless, Western environmental groups have campaigned against
introducing high-yield farming techniques to Africa, and have
persuaded image-sensitive organizations such as the Ford Foundation
and the World Bank to steer clear of Borlaug. So far the only
prominent support for Borlaug's Africa project has come from former President Jimmy Carter, a humanist and
himself a farmer, and from the late mediagenic multimillionaire
Japanese industrialist Ryoichi Sasakawa.
Reflecting Western
priorities, the debate about whether high-yield agriculture would be
good for Africa is currently phrased mostly in environmental terms,
not in terms of saving lives. By producing more food from less land,
Borlaug argues, high-yield farming will preserve Africa's wild
habitats, which are now being depleted by slash-and-burn subsistence
agriculture. Opponents argue that inorganic fertilizers and
controlled irrigation will bring a new environmental stress to the
one continent where the chemical-based approach to food production
has yet to catch on. In this debate the moral imperative of food for
the world's malnourished -- whether they "should" have been born or
not, they must eat -- stands in danger of being forgotten.
THE LESSON OF THE DUST BOWL
NORMAN BORLAUG was
born in Cresco, Iowa, in 1914. Ideas being tested in Iowa around the
time of his boyhood would soon transform the American Midwest into
"the world's breadbasket," not only annually increasing total
production -- so methodically that the increases were soon taken for
granted -- but annually improving yield, growing more bushels of
grain from the same amount of land or less. From about 1950 until
the 1980s midwestern farmers improved yields by around three percent
a year, more than doubling the overall yield through the period.
This feat of expansion was so spectacular that some pessimists
declared it was a special case that could never be repeated. But it
has been done again, since around 1970, in China. Entering
college as the Depression began, Borlaug worked for a time in the
Northeastern Forestry Service, often with men from the Civilian
Conservation Corps, occasionally dropping out of school to earn
money to finish his degree in forest management. He passed the
civil-service exam and was accepted into the Forest Service, but the
job fell through. He then began to pursue a graduate degree in plant
pathology. During his studies he did a research project on the
movement of spores of rust, a class of fungus that plagues many
crops. The project, undertaken when the existence of the jet stream
was not yet known, established that rust-spore clouds move
internationally in sync with harvest cycles -- a surprising finding
at the time. The process opened Borlaug's eyes to the magnitude of
the world beyond Iowa's borders.
At the same time, the
Midwest was becoming the Dust Bowl. Though some mythology now
attributes the Dust Bowl to a conversion to technological farming
methods, in Borlaug's mind the problem was the lack of such methods.
Since then American farming has become far more technological, and
no Dust Bowl conditions have recurred. In the summer of 1988 the
Dakotas had a drought as bad as that in the Dust Bowl, but clouds of
soil were rare because few crops failed. Borlaug was horrified by
the Dust Bowl and simultaneously impressed that its effects seemed
least where high-yield approaches to farming were being tried. He
decided that his life's work would be to spread the benefits of
high-yield farming to the many nations where crop failures as awful
as those in the Dust Bowl were regular facts of life.
In
1943 the Rockefeller Foundation established the precursor to CIMMYT
to assist the poor farmers of Mexico, doing so at the behest of the
former Secretary of Agriculture Henry Wallace, of the Pioneer
Hi-Bred seed company family, who had been unable to extract any
money from Congress for agricultural aid to Mexico. Soon Borlaug was
in Mexico as the director of the wheat program -- a job for which
there was little competition, backwater Mexico in the 1940s not
being an eagerly sought-after posting. Except for brief intervals,
he has lived in the developing world since.
The program's
initial goal was to teach Mexican farmers new farming ideas, but
Borlaug soon had the institution seeking agricultural innovations.
One was "shuttle breeding," a technique for speeding up the movement
of disease immunity between strains of crops. Borlaug also developed
cereals that were insensitive to the number of hours of light in a
day, and could therefore be grown in many climates.
Borlaug's leading research achievement was to hasten the
perfection of dwarf spring wheat. Though it is conventionally
assumed that farmers want a tall, impressive-looking harvest, in
fact shrinking wheat and other crops has often proved beneficial.
Bred for short stalks, plants expend less energy on growing inedible
column sections and more on growing valuable grain. Stout,
short-stalked wheat also neatly supports its kernels, whereas
tall-stalked wheat may bend over at maturity, complicating reaping.
Nature has favored genes for tall stalks, because in nature plants
must compete for access to sunlight. In high-yield agriculture
equally short-stalked plants will receive equal sunlight. As Borlaug
labored to perfect his wheat, researchers were seeking dwarf strains
of rice at the International Rice Research Institute, in the
Philippines, another of the Ford and Rockefeller Foundations'
creations, and at China's Hunan Rice Research Institute.
Once the Rockefeller's Mexican program was producing
high-yield dwarf wheat for Mexico, Borlaug began to argue that India
and other nations should switch to cereal crops. The proposition was
controversial then and remains so today, some environmental
commentators asserting that farmers in the developing world should
grow indigenous crops (lentils in India, cassava in Africa) rather
than the grains favored in the West. Borlaug's argument was simply
that since no one had yet perfected high-yield strains of indigenous
plants (high-yield cassava has only recently been available), CIMMYT
wheat would produce the most food calories for the developing world.
Borlaug particularly favored wheat because it grows in nearly all
environments and requires relatively little pesticide, having an
innate resistance to insects.
CIMMYT's selectively bred wheat, no longer a
wholly natural plant, would not prosper without fertilizer and
irrigation, however. High-yield crops sprout with great enthusiasm,
but the better plants grow, the more moisture they demand and the
faster they deplete soil nutrients. Like most agronomists, Borlaug
has always advocated using organic fertilizers -- usually manure --
to restore soil nutrients. But the way to attain large quantities of
manure is to have large herds of livestock, busily consuming the
grain that would otherwise feed people. Inorganic fertilizers based
on petroleum and other minerals can renew soil on a global scale --
at least as long as the petroleum holds out.
THE GREEN
REVOLUTION
TO Borlaug, the argument for high-yield cereal
crops, inorganic fertilizers, and irrigation became irrefutable when
the global population began to take off after the Second World War.
But many governments of developing nations were suspicious, partly
for reasons of tradition (wheat was then a foreign substance in
India) and partly because contact between Western technical experts
and peasant farmers might shake up feudal cultures to the discomfort
of the elite classes. Meanwhile, some commentators were suggesting
that it would be wrong to increase the food supply in the developing
world: better to let nature do the dirty work of restraining the
human population.
Yet statistics suggest that high-yield
agriculture brakes population growth rather than accelerating it, by
starting the progression from the high-birth-rate, high-death-rate
societies of feudal cultures toward the low-birth-rate,
low-death-rate societies of Western nations. As the former Indian
diplomat Karan Singh is reported to have said, "Development is the
best contraceptive." In subsistence agriculture children are viewed
as manual labor, and thus large numbers are desired. In technical
agriculture knowledge becomes more important, and parents thus have
fewer children in order to devote resources to their education.
In 1963 the Rockefeller Foundation and the government of
Mexico established CIMMYT, as an outgrowth of their original
program, and sent Borlaug to Pakistan and India, which were then
descending into famine. He failed in his initial efforts to persuade
the parastatal seed and grain monopolies that those countries had
established after independence to switch to high-yield crop strains.
Despite the institutional resistance Borlaug stayed in
Pakistan and India, tirelessly repeating himself. By 1965 famine on
the subcontinent was so bad that governments made a commitment to
dwarf wheat. Borlaug arranged for a convoy of thirty-five trucks to
carry high-yield seeds from CIMMYT to a Los Angeles dock for
shipment. The convoy was held up by the Mexican police, blocked by
U.S. border agents attempting to enforce a ban on seed importation,
and then stopped by the National Guard when the Watts riot prevented
access to the L.A. harbor. Finally the seed ship sailed. Borlaug
says, "I went to bed thinking the problem was at last solved, and
woke up to the news that war had broken out between India and
Pakistan."
Nevertheless, Borlaug and many local scientists
who were his former trainees in Mexico planted the first crop of
dwarf wheat on the subcontinent, sometimes working within sight of
artillery flashes. Sowed late, that crop germinated poorly, yet
yields still rose 70 percent. This prevented general wartime
starvation in the region, though famine did strike parts of India.
There were also riots in the state of Kerala in 1966, when a
population whose ancestors had for centuries eaten rice was
presented with sacks of wheat flour originating in Borlaug's fields.
Owing to wartime emergency, Borlaug was given the go-ahead
to circumvent the parastatals. "Within a few hours of that decision
I had all the seed contracts signed and a much larger planting
effort in place," he says. "If it hadn't been for the war, I might
never have been given true freedom to test these ideas." The next
harvest "was beautiful, a 98 percent improvement." By 1968 Pakistan
was self-sufficient in wheat production. India required only a few
years longer. Paul Ehrlich had written in The Population Bomb (1968)
that it was "a fantasy" that India would "ever" feed itself. By 1974
India was self-sufficient in the production of all cereals. Pakistan
progressed from harvesting 3.4 million tons of wheat annually when
Borlaug arrived to around 18 million today, India from 11 million
tons to 60 million. In both nations food production since the 1960s
has increased faster than the rate of population growth. Briefly in
the mid-1980s India even entered the world export market for grains.
Borlaug's majestic accomplishment came to be labeled the
Green Revolution. Whether it was really a revolution is open to
debate. As Robert Kates, a former director of the World Hunger
Program, at Brown University, says, "If you plot growth in farm
yields over the century, the 1960s period does not particularly
stand out for overall global trends. What does stand out is the
movement of yield increases from the West to the developing world,
and Borlaug was one of the crucial innovators there." Touring the
subcontinent in the late 1960s and encountering field after field of
robust wheat, Forrest Frank Hill, a former vice-president of the
Ford Foundation, told Borlaug, "Enjoy this now, because nothing like
it will ever happen to you again. Eventually the naysayers and the
bureaucrats will choke you to death, and you won't be able to get
permission for more of these efforts."
THE HIGH-YIELD
BOOM
FOR some time this augury seemed mistaken, as
Borlaug's view of agriculture remained ascendant. In 1950 the world
produced 692 million tons of grain for 2.2 billion people; by 1992
production was 1.9 billion tons for 5.6 billion people -- 2.8 times
the grain for 2.2 times the population. Global grain yields rose
from 0.45 tons per acre to 1.1 tons; yields of corn, rice, and other
foodstuffs improved similarly. From 1965 to 1990 the globe's daily
per capita intake grew from 2,063 calories to 2,495, with an
increased proportion as protein. Malnutrition continued as a problem
of global scale but decreased in percentage terms, even as more than
two billion people were added to the population.
The world's
1950 grain output of 692 million tons came from 1.7 billion acres of
cropland, the 1992 output of 1.9 billion tons from 1.73 billion
acres -- a 170 percent increase from one percent more land. "Without
high-yield agriculture," Borlaug says, "either millions would have
starved or increases in food output would have been realized through
drastic expansion of acres under cultivation -- losses of pristine
land a hundred times greater than all losses to urban and suburban
expansion."
The trend toward harvesting more from fewer
acres, often spun in the media as a shocking crisis of "vanishing
farms," is perhaps the most environmentally favorable development of
the modern age. Paul Waggoner, of the Connecticut Agricultural
Experiment Station, says, "From long before Malthus until about
forty-five years ago each person took more land from nature than his
parents did. For the past forty-five years people have been taking
less land from nature than their parents."
In developing
nations where population growth is surging, high-yield agriculture
holds back the rampant deforestation of wild areas. Waggoner
calculates that India's transition to high-yield farming spared the
country from having to plough an additional 100 million acres of
virgin land -- an area about equivalent to California. In the past
five years India has been able to slow and perhaps even halt its
national deforestation, a hopeful sign. This would have been
impossible were India still feeding itself with traditionally
cultivated indigenous crops.
BACKLASH
NONETHELESS, by the 1980s finding fault with high-yield
agriculture had become fashionable. Environmentalists began to tell
the Ford and Rockefeller Foundations and Western governments that
high-yield techniques would despoil the developing world. As Borlaug
turned his attention to high-yield projects for Africa, where mass
starvation still seemed a plausible threat, some green organizations
became determined to stop him there. "The environmental community in
the 1980s went crazy pressuring the donor countries and the big
foundations not to support ideas like inorganic fertilizers for
Africa," says David Seckler, the director of the International
Irrigation Management Institute.
Environmental lobbyists
persuaded the Ford Foundation and the World Bank to back off from
most African agriculture projects. The Rockefeller Foundation
largely backed away too -- though it might have in any case, because
it was shifting toward an emphasis on biotechnological agricultural
research. "World Bank fear of green political pressure in Washington
became the single biggest obstacle to feeding Africa," Borlaug says.
The green parties of Western Europe persuaded most of their
governments to stop supplying fertilizer to Africa; an exception was
Norway, which has a large crown corporation that makes fertilizer
and avidly promotes its use. Borlaug, once an honored presence at
the Ford and Rockefeller Foundations, became, he says, "a tar baby
to them politically, because all the ideas the greenies couldn't
stand were sticking to me." Borlaug's reaction to the campaign
was anger. He says, "Some of the environmental lobbyists of the
Western nations are the salt of the earth, but many of them are
elitists. They've never experienced the physical sensation of
hunger. They do their lobbying from comfortable office suites in
Washington or Brussels. If they lived just one month amid the misery
of the developing world, as I have for fifty years, they'd be crying
out for tractors and fertilizer and irrigation canals and be
outraged that fashionable elitists back home were trying to deny
them these things."
In 1984, at the age of seventy-one,
Borlaug was drawn out of retirement by Ryoichi Sasakawa, who with
Jimmy Carter was working to get African agriculture moving. Carter
was campaigning in favor of fertilizer aid to Africa, as he still
does today. The former President had fallen in with Sasakawa, who
during the Second World War had founded the National Essence Mass
Party, a Japanese fascist group, but who in later life developed a
conscience. Today the Sasakawa Peace Foundation is a leading
supporter of disarmament initiatives; Carter and Sasakawa often made
joint appearances for worthy causes.
Sasakawa called
Borlaug, who related his inability to obtain World Bank or
foundation help for high-yield-agriculture initiatives in Africa.
Sasakawa was dumbfounded that a Nobel Peace Prize winner couldn't
get backing for a philanthropic endeavor. He offered to fund Borlaug
in Africa for five years. Borlaug said, "I'm seventy-one. I'm too
old to start again." Sasakawa replied, "I'm fifteen years older than
you, so I guess we should have started yesterday." Borlaug, Carter,
and Sasakawa traveled to Africa to pick sites, and the foundation
Sasakawa-Global 2000 was born. "I assumed we'd do a few years of
research first," Borlaug says, "but after I saw the terrible
circumstances there, I said, 'Let's just start growing.'" Soon
Borlaug was running projects in Benin, Ethiopia, Ghana, Nigeria,
Sudan, Tanzania, and Togo. Yields of corn quickly tripled; yields of
wheat, cassava, sorghum, and cow peas also grew.
Borlaug
made progress even in Sudan, near the dry Sahel, though that project
ended with the onset of Sudan's civil war, in 1992. Only Sasakawa's
foundation came forward with more funds, but although well endowed,
it is no World Bank. Environmentalists continued to say that
chemical fertilizers would cause an ecological calamity in Africa.
Opponents of high-yield agriculture "took the numbers for
water pollution caused by fertilizer runoff in the United States and
applied them to Africa, which is totally fallacious," David Seckler
says. "Chemical-fertilizer use in Africa is so tiny you could
increase application for decades before causing the environmental
side effects we see here. Meanwhile, Africa is ruining its wildlife
habitat with slash-and-burn farming, which many commentators
romanticize because it is indigenous." Borlaug found that some
foundation managers and World Bank officials had become hopelessly
confused regarding the distinction between pesticides and
fertilizer. He says, "The opponents of high-yield for Africa were
speaking of the two as if they were the same because they're both
made from chemicals, when the scales of toxicity are vastly
different. Fertilizer only replaces substances naturally present in
the soils anyway."
In Africa and throughout the developing
world Borlaug and most other agronomists now teach forms of
"integrated pest management," which reduces pesticide use because
chemicals are sprayed at the most vulnerable point in an insect's
life cycle. Borlaug says, "All serious agronomists know that
pesticides must be kept to a minimum, and besides, pesticides are
expensive. But somehow the media believe the overspraying is still
going on, and this creates a bias against high-yield agriculture."
Indonesia has for nearly a decade improved rice yields while
reducing pesticide use by employing integrated pest management. The
use of pesticides has been in decline relative to farm production
for more than a decade in the United States, where the use of
fertilizer, too, has started declining relative to production.
Such developments have begun to sway some of Borlaug's
opposition. The Committee on Sustainable Agriculture, a coalition of
environmental and development-oriented groups, has become somewhat
open to fertilizer use in Africa. "The environmental movement went
through a phase of revulsion against any chemical use in
agriculture," says Robert Blake, the committee's chairman. "People
are coming to realize that is just not realistic. Norman has been
right about this all along." One reason the ground is shifting back
in his direction, Borlaug believes, is that the green parties of
Europe have been frightened by the sudden wave of migrants entering
their traditionally low-immigration nations, and now think that
improving conditions in Africa isn't such a bad idea after all.
Supposing that opposition to high-yield agriculture for
Africa declines, the question becomes What can be accomplished
there? Pierre Crosson, an agricultural analyst for the nonpartisan
think tank Resources for the Future, calculates that sub-Saharan
Africa needs to increase farm yields by 3.3 percent annually for the
next thirty years merely to keep pace with the population growth
that is projected. This means that Africa must do what the American
Midwest did.
"Africa has the lowest farm yields in the world
and also a large amount of undeveloped land, so in theory a huge
increase in food production could happen," says John Bongaarts, the
research director of the Population Council, a nonprofit
international research organization. "If southern Sudan was parked
in the Midwest, they'd be growing stuff like crazy there now."
Practical problems, however, make Bongaarts think that rapid African
yield increases are "extremely unlikely in the near future." The
obvious obstacles are desperate poverty and lack of social cohesion.
When Borlaug transformed the agriculture of Pakistan and India,
those nations had many problems but also reasonably well organized
economies, good road and rail systems, irrigation projects under
way, and an established entrepreneurial ethos. Much of Africa lacks
these. Additionally, African countries often lack a social focus
on increasing agricultural output. Young men, especially, consider
the farm a backwater from which they long to escape to the city.
African governments and technical ministries tend to look down on
food production as an old-fashioned economic sector, longing instead
for high-tech facilities that suggest Western prestige and power.
Yet a basic reason that the United States and the European Union
nations are so strong is that they have achieved almost total
mastery over agriculture, producing ample food at ever-lower prices.
An encouraging example of an African government taking a
progressive view of agriculture comes from Ethiopia, where, since
the end of its civil war, Borlaug has run his most successful
African project. Visiting Ethiopia in 1994, Jimmy Carter took Prime
Minister Meles Zenawi on a tour of places where Borlaug's ideas
could be tested, and won Zenawi's support for an extension-service
campaign to aid farmers. During the 1995-1996 season Ethiopia
recorded the greatest harvests of major crops in its history, with a
32 percent increase in production and a 15 percent increase in
average yield over the previous season. Use of the fertilizer
diammonium phosphate was the key reform. The rapid yield growth
suggests that other sub-Saharan countries may also have hope for
increased food production.
Whether Africa can increase its
food production may soon become one of the questions of
international affairs. It may be one at which, in a decade or two,
Western governments will frantically throw money after a crisis
hits, whereas more-moderate investments begun now might avert the
day of reckoning. And one of the questions of the next century may
be whether the world can feed itself at all.
10 BILLION
MOUTHS
HIS opponents may not know it, but Borlaug has
long warned of the dangers of population growth. "In my Nobel
lecture," Borlaug says, "I suggested we had until the year 2000 to
tame the population monster, and then food shortages would take us
under. Now I believe we have a little longer. The Green Revolution
can make Africa productive. The breakup of the former Soviet Union
has caused its grain output to plummet, but if the new republics
recover economically, they could produce vast amounts of food. More
fertilizer can make the favored lands of Latin America -- especially
Argentina and Brazil -- more productive. The cerrado region of
Brazil, a very large area long assumed to be infertile because of
toxic soluble aluminum in the soil, may become a breadbasket,
because aluminum-resistant crop strains are being developed." This
last is an example of agricultural advances and environmental
protection going hand in hand: in the past decade the deforestation
rate in the Amazon rain forest has declined somewhat, partly because
the cerrado now looks more attractive.
Borlaug continues,
"But Africa, the former Soviet republics, and the cerrado are the
last frontiers. After they are in use, the world will have no
additional sizable blocks of arable land left to put into
production, unless you are willing to level whole forests, which you
should not do. So future food-production increases will have to come
from higher yields. And though I have no doubt yields will keep
going up, whether they can go up enough to feed the population
monster is another matter. Unless progress with agricultural yields
remains very strong, the next century will experience sheer human
misery that, on a numerical scale, will exceed the worst of
everything that has come before."
But "very strong" progress
on yields seems problematic. John Bongaarts calculates that
agricultural yields outside Western countries must double in the
coming century merely to maintain current -- and inadequate --
nutrition levels. The United Nations projects that human numbers
will reach about 9.8 billion, from about 5.8 billion today, around
the year 2050. To bring the entire world's diet in that year to a
level comparable to that of the West, Bongaarts calculates, would
require a 430 percent increase in food production.
Lester
Brown, the head of the Worldwatch Institute, an environmental
organization, fears that China may soon turn from an agricultural
success story into a nation of shortages. Because much of it is
mountainous, China already uses most of its attractive tillage area,
leaving scant room for expansion. Its remarkable improvements in
wheat and rice yields have come in part, Brown thinks, at the
expense of depleting the national water table: irrigation water may
soon become scarce. As newly affluent Chinese consumers demand more
chicken and beef, feeding increased amounts of grain to animals may
cause grain scarcity. If, as some experts project, the Chinese
population rises from 1.2 billion to 1.6 billion, yield increases
will not bridge the difference, Brown fears.
Privatization
and dwarf rice have enabled China to raise rice yields rapidly to
about 1.6 tons per acre -- close to the world's best figure of two
tons. But recently rice-yield increases have flattened. The
International Rice Research Institute is working on a new strain
that may boost yields dramatically, but whether it will prosper in
the field is unknown. Ismail Serageldin, the chairman of the
Consultative Group on International Agricultural Research, in
Washington, D.C., believes that the "biological maximum" for rice
yield is about seven tons per acre -- four times today's average in
developing countries, but perhaps a line that cannot be crossed.
An important unknown is whether genetic engineering will
improve agricultural yields. Corn is among the highest-yielding
plants. "If the high natural multiples of maize could be transferred
by gene engineering to wheat or rice, there could be a tremendous
world yield improvement," Paul Waggoner, of the Connecticut
Agricultural Experiment Station, says. So far genetic engineering
has not produced any higher-yielding strains, though it does show
promise for reducing pesticide application. Some researchers also
think that biotechnology will be able to pack more protein and
minerals into cereal grains. Others, Borlaug among them, are
skeptical about whether yield itself can be engineered. So far gene
recombination can move only single genes or small contiguous gene
units. Borlaug says, "Unless there is one master gene for yield,
which I'm guessing there is not, engineering for yield will be very
complex. It may happen eventually, but through the coming decades we
must assume that gene engineering will not be the answer to the
world's food problems." Today Borlaug divides his time among
CIMMYT, where he teaches young scientists seeking
still-more-productive crop strains for the developing world; Texas
A&M, where he teaches international agriculture every fall
semester; and the Sasakawa-Global 2000 projects that continue to
operate in twelve African nations.
Borlaug's Africa project
is a private-sector effort run by an obscure Nobel Peace Prize
winner and a former American President whose altruistic impulses are
made sport of in the American press. Its goal is something the West
seems almost to have given up on -- the rescue of Africa from human
suffering. Recently Western governments have been easing out of
African aid, pleading "donor fatigue," the difficulty of overcoming
corruption, and fear of criticism from the environmental lobby.
Private organizations, including Borlaug's, Catholic Relief
Services, and Oxfam, carry on what's left of the fight.
If
overpopulation anarchy comes, it is likely to arrive first in
Africa. Borlaug understands this, and is using his remaining years
to work against that cataclysm. The odds against him seem long. But
then, Norman Borlaug has already saved more lives than any other
person who ever lived.
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