SAVING THE GULF THE RIGHT WAY… BY GOING ORGANIC
By Jack Bradigan Spula
To do a riff on Mark Twain: recent reports of the Gulf of Mexico’s recovery have been
greatly exaggerated.
Yes, as the media relentlessly tell us, the Gulf, at least on the surface, looks pretty
normal, surprisingly so in the wake of this year’s BP deepwater drilling disaster and
lesser insults like the September 2 Mariner Energy oil platform fire.
Shrimping and oystering have resumed somewhat (though many still need to pursue
claims for business perhaps lost forever). And seabirds and human sun-worshippers,
neither group with any visible oil coverage, still congregate on gorgeous sandy beaches.
A loose journalistic consensus, fueled as usual by corporate influence, has gelled: all is
well – or will soon be, thanks to Mother Nature’s inscrutable bacterial clean-up efforts.
After all, petroleum is a naturally-occurring substance, right (not to mention oilconsuming microbes)? And underwater oil seeps have been observed in the Gulf since
time immemorial.
But several stakes – in the hands of various powerful “stakeholders” – still pierce the
heart of this unparalleled subtropical marine ecosystem. And perhaps the most serious
one has been hiding in plain sight for decades.
Specifically, the Gulf is an oceanic hostage to a terrestrial threat that dominates the
“heartland” of the Lower Forty-eight: modern industrialized agriculture. And if ever there
was an ecological wolf in sheep’s clothing, this is it: “conventional” farms throughout the
vast Mississippi-Missouri-Ohio basin produce nitrogen and phosphorus runoff on a
massive scale that creates a Gulf “dead zone” depleted of oxygen and inimical to aquatic
life.
All things considered, this runoff may do more harm to the Gulf’s marine and riparian
ecosystems than almost anything BP might dream up. But we need to be more specific.
It’s not farming per se that’s the problem. It’s synthetic fertilizer and other chemical
runoff that, having been applied in excess to cornfields and other cultivated areas, is
annually washed off “conventionally” cultivated soils upstream – with the rich, or
formerly rich soils themselves disappearing into the toxic soup. The mechanism of
destruction is simple: The chemical runoff fuels the growth of excessive algae which then
dies and decomposes, robbing the seawater of oxygen and creating so-called “hypoxic”
zones commonly described as “the size of New Jersey” or Delaware or… perhaps larger
states as time goes on.
This perverse process, which tends to be concentrated with the start of the growing
season, is also expensive. A 2006 study by the Washington-based Environmental
Working Group determined that runoff from the greater Mississippi Basin, at a rate of 7.8
million pounds per day in the springtime, accounted for 70 percent of the nitrate pollution
in the Gulf (by contrast, municipal runoff accounted for just 11 percent.) and ran up a bill
of $400 million a year.
Following the money further yields some interesting facts. These nitrates and phosphates
hail from agricultural states that themselves are saturated with vast public agricultural
“commodity” payments – in particular, the tens of billions in payouts that form the bulk
of what’s summarized as the federal Farm Bill and underwrites large corn, soybean and
similar operations concentrated in the “I States” (Iowa, Illinois, Indiana). There’s also an
odd inverse relationship between these payments, which of course promote the erosion
that accompanies the intense cultivation of these croplands, and the public conservation
subsidies – specifically, wetland-preservation and water-quality payments - designed to
keep soil from washing away. According to the EWG study, in the most highly offending
geographical areas, the ratio of subsidies that actually promote soil loss to those that
promote soil conservation and clean water can be 1000 to one, or even worse.
The EWG notes some obvious solutions. For example, since the upstream agricultural
areas whose runoff is growing the Gulf’s Dead Zone are relatively concentrated
geographically, remediation efforts can be concentrated, as well, and thus more effective.
But the fine print gives good cause for skepticism on this point. Says the EWG:
“Focusing resources on reducing fertilizer runoff in these hotspots through wetland
restoration, streamside easements and better nutrient management on working farm lands
will improve local water quality, restore stream and river banks, help control floodwaters,
and ultimately reduce the size of the Dead Zone in the Gulf of Mexico. Currently,
however, trends are in the opposite direction. In the nitrate pollution hotspots…less than
3 percent of the acreage is enrolled in any kind of conservation program. Overall, acres
set aside for conservation in the MRB have declined over 30 percent since their peak in
1993” (emphasis added).
Obviously, efforts to stem the flow of phosphorus and nitrogen “nutrients” downriver and
into the Gulf of Mexico will need to go way beyond what’s possible with even the best
conventional conservation practices. Certainly the dominance of King Corn, Cotton, and
other commodities, plus the attendant (and unfortunately legalized) corruption of federal
supports, must be addressed.
Nothing short of a wholesale shift to organic agriculture, coupled with the adoption of
smart hydrological practices, will be up to the task.
Just by themselves, policies that treat rivers and wetlands like natural systems will go a
long way. The National Oceanic and Atmospheric Administration (NOAA) claimed in a
1999 study that more than 50 percent of nitrogen runoff from the Mississippi Basin could
be eliminated by such measures as “the creation and restoration of wetlands and riparian
[i.e. streambank and shoreline] ecosystems between farmland and streams and rivers,” the
“reflooding” of former wetlands throughout the region, plus the retention and/or
diversion of floodwaters to the “backwaters” and coastal wetlands that were historically –
and properly – their destinations.
But there’s no reason to stop at 50 percent. A huge additional reduction in problematic
runoff could be achieved by going organic.
The Rodale Institute points out that “converting acres of cropland to organically-grown
agriculture… greatly increases soil organic matter and includes nutrient-retaining ‘trap’
crops. Soil scientists refer to these “traps” as among the “reservoirs” that keep nitrogen
where it belongs and in the lower concentrations that keep it from turning into water
pollution. Other organic farming practices, says the Institute, would help, too – simple
things like “returning crop land to pasture and growing more multi-year forage crops.”
Healthy soil, nurtured by organic practices that increase humus content and thus waterretention capacity, grows healthy plants that don’t cast off excessive nitrogen and other
“wastes.” And in tandem, healthy soil and crops act as the ultimate control devices for
cleansing the water that eventually winds up in the Gulf.
The Environmental Protection Agency has proposed a target – a 45 percent reduction in
nitrate runoff by the year 2015 – to kill off the Gulf’s dead zone. That’s in line with what
the NOAA says is possible by conventional means. But organic farmers and enthusiasts
know that much more of a reduction is possible through a revolution in farming. It’s not
possible to get to 100 percent (nitrates, etc., wind up in the water via atmospheric
deposition, municipal runoff, and other vectors that cry out for their own solutions), but
why not set a target of, say, a 75-80 percent reduction over the coming years? Something
in that range should be attainable if organic becomes the conventional form – the “new
normal,” you might say - of US agriculture.
Jack Bradigan Spula is a Rochester (NY)-based freelance writer and activist who works
with the Northeast Organic Farming Association’s Interstate Council.