| Ten Reasons Why Organic Food
Is Better
By Guy Dauncey
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Organic farming is better for wildlife
A report by Britain’s Soil Association shows that wildlife
is substantially richer and more varied on organic than on
conventional farms. A typical organic field has five times
as many wild plants, 57% more species, and 44% more birds
in cultivated areas than a regular farm. Two 1996 studies
show that organic farms have twice as many skylarks, and twice
as many butterflies. Every time we eat an organic lettuce
or tomato, we help restore wildlife.
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Organic farming is better for the soil
Studies show that organic fields have deeper vegetation,
more weed cover, and contain 88% more ‘epigeal arthropods’
(squiggly soil creatures). A new Swiss study demonstrates
that organic soils have more soil microbes, more mycorrhizae
– the fungi that attach themselves to the tips of plant roots
and help plants absorb nutrients - and more earthworms. It
found that soil insects are twice as abundant and more diverse
in organic plots, including pest-eating spiders and beetles.
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Organic food is better for animal reproduction
Out of 14 animal studies, ten showed that animals fare
better when fed organic food. Three showed no difference,
and one showed an improvement with conventional food. We are
all mammals, so we share a lot in common. Female rabbits fed
on organic food have twice the level of ovum production; chickens
fed on organic food have a 28% higher rate of egg production.
Rabbits that were fed conventional food saw a decline in fertility
over three generations, compared to no decline for organically
fed rabbits. Meanwhile, many human couples find it hard to
have a baby….
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Organic food helps fight cancer, stroke and heart problems
In a recent study, Scottish scientists found that organic
vegetable soups contain almost six times as much salicylic
acid as non-organic vegetable soups. Eleven brands of organic
soup had 117 nanograms per gram, versus just 20 nanograms
in 24 types of non-organic soup. Salicylic acid is the main
ingredient in aspirin; it helps fight hardening of the arteries
and bowel cancer, and is produced naturally in plants as a
defence against stress and disease. If plants don’t have to
resist bugs because of pesticide-use, they generate less salicylic
acid, and pass less on to us. The same scientists found significantly
higher concentrations of salicylic acid in the blood of vegetarian
Buddhist monks, compared with meat-eaters.
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Organic food contains more nutrients
According to a recent study by the Globe and Mail and
CTV News of the nutrient quality of fruit and vegetables,
compared to 50 years ago, today’s regular fruit and vegetables
contain dramatically less vitamins and minerals. The average
potato has lost 100% of its vitamin A, 57% of its vitamin
C and iron, 28% of its calcium, 50% of its riboflavin, and
18% of its thiamin. Out of seven key nutrients studied, only
niacin levels increased. Similar results applied to 24 other
fruits and vegetables. For broccoli, all seven nutrients fell,
including a 63% decrease in calcium and a 34% decrease in
iron. No wonder we are gulping down the supplements.
In April 2001, however, a US study examined 41 comparisons
of the nutrient levels in organic and regular foods. In every
case, the organic crops had higher nutrient levels - 27% more
vitamin C, 29% more iron, 14% more phosphorus. At the June
2001 meeting of the American Chemical Society, a chemistry
professor reported that organic oranges contained up to 30%
more vitamin C than regular oranges, even though they are
half the size. (Conventional orange trees are fed nitrogen
fertilizer, causing the fruit to absorb more water, which
makes them bigger.) In a French study, a cancer specialist
studying the nutrient qualities of food grown in the Languedoc-Roussillon
region of France showed that for the twelve foods where his
study is complete, the organic foods showed increased quantities
of vitamins A, C, E, and the B group, increased elements such
as zinc, increased minerals such as calcium, and increased
fibre.
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Organic apples are just better!
From 1994 to 1999, a soil scientist at Washington State University
ran a series of tests comparing apple orchards. The organic
orchard had the best soil, held water better, and resisted
soil damage better. It was more energy efficient, and required
less labour and less water per apple. The organic apples were
firmer, tasted sweeter and were less tart to a non-expert
panel. The organic orchard also made more money, since the
apples sold for a higher price. (The Salt Spring Apple Festival
is on Sunday September 30th, with 14 orchards open
to the public, and 350 varieties of organic apple. Contact
Harry Burton, 250-653-2007).
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Organic farming can feed the world
In a 2002 Greenpeace report, the authors found that organic
and agro-ecological methods of growing in the Southern hemisphere
produced a dramatic increase in yields, as well as reduced
pests and diseases, greater crop diversity, and improved nutritional
content. In the Tigray, Ethiopia, organic crops raised 3-5
times more food than chemically treated plots; in Brazil,
maize yields increased by 20 – 250%; in Peru, uplands crop
yields increased by 150%.
In 1998, the Rodale Institute in Kutztown, Pennsylvania, published
the results of a 15-year study that compared 3 ways of growing
maize and soybeans – a conventional chemical rotation method,
an organic system involving crop rotation and legume crops,
and an organic system using cow manure. The yields were similar
for all three systems, debunking the myth that organic methods
cannot feed the world. In Britain, an experiment run at Broadbalk
by the Rothamsted Experimental Station for 150 years has shown
that wheat yields on manured plots average 3.45 tonnes per
hectare, compared to 3.40 tonnes on the chemically fertilized
plots.
A recently completed 21-year Swiss study, on the other hand,
showed that organic yields were 20% smaller than conventional
yields. The organic plots required 34% to 53% less fertilizer
and energy and 97% less pesticide, however, and produced more
food per unit of energy and fertilizer. The soil microbes,
flora, fauna and soil fertility also increased, leading the
study’s authors to conclude that the ecological benefits of
organic farming make up for the reduced harvest.
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Organic farming protects the climate
Organic soil is full of living creatures, which carry
carbon. In the Rodale experiment, the organically managed
plot stored much more carbon than the conventional plot. In
the Broadbalk experiment, soil fertility increased by 120%
in the manured plots, versus 20% in the chemical plots. The
same results occurred in the Swiss experiment. A study in
California’s Central Valley showed that as well as producing
similar yields and suffering similar pest damage, organically
managed fields produced 28% more organic carbon. By storing
more carbon in the soil, organic farmers help to counteract
global climate change.
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Organic farming produces higher yields in drought conditions
In a review of comparative studies of grain and soybean
production in the US Midwest, organic growers produced higher
yields in drier climates and during droughts (and similar
yields in regular conditions). The same results were found
in the Rodale experiment. Organic matter makes the soil less
compact and more moisture retentive, allowing the roots to
penetrate more deeply to find water.
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10. Organic food is safer
Organic farming generates more jobs, produces more profits,
and doesn’t pollute groundwater with nitrogen run-off. It
also avoids all the risks associated with GM crops. But let’s
finish with the reason why many people start eating organic
food – because they believe it is safer. Farmers in Canada,
Kansas and Nebraska who use the pesticide 2,4-D suffer a higher
rate of non-Hodgkin’s lymphoma (a cancer). The same applies
to dogs which play on lawns that have been sprayed. In Sweden,
exposure to phenoxy herbicides has been shown to increase
the risk of contracting lymphomas six-fold. In the US, the
death rates from myeloma (a cancer) are highest in rural farming
areas. And so it goes on. Migrant farmworkers suffer an abnormally
high rate of multiple myeloma, stomach, prostate and testicular
cancer. Organic farming carries none of these risks.
There is a strong association between breast cancer and exposure
to chemical pesticides. Atrazine, a common ingredient in pesticides,
causes breast cancer in rats, chromosomal breakdown in the
ovaries of hamsters, and hind-limb deformities in frogs. A
Finnish study showed that women whose breasts stored the highest
levels of a lindane-like residue were ten times more likely
to have breast cancer than women with lower levels. (Lindane
is a pesticide).
We can end all this by shifting to organic food. We can be
healthier. Our children can be healthier. Our farmers and
farm workers can be healthier. Frogs, worms, butterflies,
skylarks and the soil itself can be healthier. All that it
takes is to turn away from chemically grown food, and embrace
organic food.
Guy Dauncey is the author of Earthfuture: Stories from a Sustainable
World (ecotopian short stories, summer reading!) and Stormy
Weather: 101 Solutions to Global Climate Change, winner of
a Nautilus Award at the New York Book Expo (New Society Publishers).
He lives in Victoria. www.earthfuture.com
First published in Common Ground Magazine, August
2002
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