[Sdpg] Save the Planet: Eat More Beef* By LISA ABEND Monday, Jan. 25, 2010 Time Magazine
Wesley Roe and Santa Barbara Permaculture Network
lakinroe at silcom.com
Mon Jan 18 07:07:06 PST 2010
Save the Planet: Eat More Beef*
By LISA ABEND Monday, Jan. 25, 2010 Time Magazine
http://www.time.com/time/magazine/article/0,9171,1953692,00.html
Cattle on this Hardwick, Mass., farm grow not on feedlots but in
pastures, where their grazing helps keep carbon dioxide in the ground.
On a farm in coastal Maine, a barn is going up. Right now it's little
more than a concrete slab and some wooden beams, but when it's
finished, the barn will provide winter shelter for up to six cows and
a few head of sheep. None of this would be remarkable if it weren't
for the fact that the people building the barn are two of the most
highly regarded organic-vegetable farmers in the country: Eliot
Coleman wrote the bible of organic farming, The New Organic Grower,
and Barbara Damrosch is the Washington Post's gardening columnist. At
a time when a growing number of environmental activists are calling
for an end to eating meat, this veggie-centric power couple is
beginning to raise it. "Why?" asks Coleman, tromping through the mud
on his way toward a greenhouse bursting with December turnips.
"Because I care about the fate of the planet."
Ever since the U.N. Food and Agriculture Organization released a 2006
report that attributed 18% of the world's man-made greenhouse-gas
emissions to livestock - more, the report noted, than what's produced
by transportation - livestock has taken an increasingly hard rap. At
first, it was just vegetarian groups that used the U.N.'s findings as
evidence for the superiority of an all-plant diet. But since then, a
broader range of environmentalists has taken up the cause. At a
recent European Parliament hearing titled "Global Warming and Food
Policy: Less Meat=Less Heat," Rajendra Pachauri, chairman of the
Intergovernmental Panel on Climate Change, argued that reducing meat
consumption is a "simple, effective and short-term delivery measure
in which everybody could contribute" to emissions reductions.
And of all the animals that humans eat, none are held more
responsible for climate change than the ones that moo. Cows not only
consume more energy-intensive feed than other livestock; they also
produce more methane - a powerful greenhouse gas - than other animals
do. "If your primary concern is to curb emissions, you shouldn't be
eating beef," says Nathan Pelletier, an ecological economist at
Dalhousie University in Halifax, N.S., noting that cows produce 13 to
30 lb. of carbon dioxide per pound of meat.
So how can Coleman and Damrosch believe that adding livestock to
their farm will help the planet? Cattleman Ridge Shinn has the
answer. On a wintry Saturday at his farm in Hardwick, Mass., he is
out in his pastures encouraging a herd of plump Devon cows to move to
a grassy new paddock. Over the course of a year, his 100 cattle will
rotate across 175 acres four or five times. "Conventional cattle
raising is like mining," he says. "It's unsustainable, because you're
just taking without putting anything back. But when you rotate cattle
on grass, you change the equation. You put back more than you take."
(See the top 10 scientific discoveries of 2009.)t works like this:
grass is a perennial. Rotate cattle and other ruminants across
pastures full of it, and the animals' grazing will cut the blades -
which spurs new growth - while their trampling helps work manure and
other decaying organic matter into the soil, turning it into rich
humus. The plant's roots also help maintain soil health by retaining
water and microbes. And healthy soil keeps carbon dioxide underground
and out of the atmosphere.
Compare that with the estimated 99% of U.S. beef cattle that live out
their last months on feedlots, where they are stuffed with corn and
soybeans. In the past few decades, the growth of these concentrated
animal-feeding operations has resulted in millions of acres of
grassland being abandoned or converted - along with vast swaths of
forest - into profitable cropland for livestock feed. "Much of the
carbon footprint of beef comes from growing grain to feed the
animals, which requires fossil-fuel-based fertilizers, pesticides,
transportation," says Michael Pollan, author of The Omnivore's
Dilemma. "Grass-fed beef has a much lighter carbon footprint."
Indeed, although grass-fed cattle may produce more methane than
conventional ones (high-fiber plants are harder to digest than
cereals, as anyone who has felt the gastric effects of eating
broccoli or cabbage can attest), their net emissions are lower
because they help the soil sequester carbon.
From Vermont, where veal and dairy farmer Abe Collins is developing
software designed to help farmers foster carbon-rich topsoil quickly,
to Denmark, where Thomas Harttung's Aarstiderne farm grazes 150 head
of cattle, a vanguard of small farmers are trying to get the word out
about how much more eco-friendly they are than factory farming. "If
you suspend a cow in the air with buckets of grain, then it's a bad
guy," Harttung explains. "But if you put it where it belongs - on
grass - that cow becomes not just carbon-neutral but
carbon-negative." Collins goes even further. "With proper management,
pastoralists, ranchers and farmers could achieve a 2% increase in
soil-carbon levels on existing agricultural, grazing and desert lands
over the next two decades," he estimates. Some researchers
hypothesize that just a 1% increase (over, admittedly, vast acreages)
could be enough to capture the total equivalent of the world's
greenhouse-gas emissions.
This math works out in part because farmers like Shinn don't use
fertilizers or pesticides to maintain their pastures and need no
energy to produce what their animals eat other than what they get
free from the sun. Furthermore, pasturing frequently uses land that
would otherwise be unproductive. "I'd like to see someone try to
raise soybeans here," he says, gesturing toward the rocky, sloping
fields around him.
By many standards, pastured beef is healthier. That's certainly the
case for the animals involved; grass feeding obviates the antibiotics
that feedlots are forced to administer in order to prevent the
acidosis that occurs when cows are fed grain. But it also appears to
be true for people who eat cows. Compared with conventional beef,
grass-fed is lower in saturated fat and higher in omega-3s, the
heart-healthy fatty acids found in salmon.
But not everyone is sold on its superiority. In addition to citing
grass-fed meat's higher price tag - Shinn's ground beef ends up
retailing for about $7 a pound, more than twice the price of
conventional beef - feedlot producers say that only through their
economies of scale can the industry produce enough meat to satisfy
demand, especially for a growing population. These critics note that
because grass is less caloric than grain, it takes two to three years
to get a pastured cow to slaughter weight, whereas a feedlot animal
requires only 14 months. "Not only does it take fewer animals on a
feedlot to produce the same amount of meat," says Tamara Thies, chief
environmental counsel for the National Cattlemen's Beef Association
(which contests the U.N.'s 18% figure), "but because they grow so
quickly, they have less chance to produce greenhouse gases."
To Allan Savory, the economies-of-scale mentality ignores the role
that grass-fed herbivores can play in fighting climate change. A
former wildlife conservationist in Zimbabwe, Savory once blamed
overgrazing for desertification. "I was prepared to shoot every
bloody rancher in the country," he recalls. But through rotational
grazing of large herds of ruminants, he found he could reverse land
degradation, turning dead soil into thriving grassland.
Like him, Coleman now scoffs at the environmentalist vogue for
vilifying meat eating. "The idea that giving up meat is the solution
for the world's ills is ridiculous," he says at his Maine farm. "A
vegetarian eating tofu made in a factory from soybeans grown in
Brazil is responsible for a lot more CO[subscript 2] than I am." A
lifetime raising vegetables year-round has taught him to value the
elegance of natural systems. Once he and Damrosch have brought in
their livestock, they'll "be able to use the manure to feed the
plants, and the plant waste to feed the animals," he says. "And even
though we can't eat the grass, we'll be turning it into something we
can."
*Grass feeding required Cattle on this Hardwick, Mass., farm grow not
on feedlots but in pastures, where their grazing helps keep carbon
dioxide in the ground
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