No, GMOs Didn't Create India's Farmer Suicide Problem, But…
Since the mid-1990s, around 300,000 Indian farmers have
killed themselves—a rate of about one every 30 minutes, which is 47
percent higher than the national average. The tragedy has become
entangled in the rhetorical war around genetically modified seeds.
Some anti-GMO activists, including Indian scientist and
organic-farming champion Vandana Shiva, have blamed the high suicide
rates directly on biotech seeds—specifically, cotton tweaked by Monsanto
to contain the Bt pesticide, now used on more than 90 percent of India's cotton acreage. Shiva has gone so far as to declare them "seeds of suicide," because, she claims, "suicides increased after Bt cotton was introduced."
GMO enthusiasts, by contrast, counter that Monsanto's patented seeds
are a boon to India's cotton farmers: They've boosted crop yields,
driven down pesticide use, and alleviated rural poverty, a 2010 paper by
the pro-industry International Service for the Acquisition of
Agri-biotech Applications (ISAAA) argued.
India's shift to industrial farming left
the majority of the nation's cotton farmers increasingly reliant on
loans to purchase pricey fertilizers, pesticides, and eventually
high-tech seeds.
So which is it? According to a recent peer-reviewed paper
from a team led by Andrew Gutierrez, a professor emeritus at the
University of California-Berkeley's department of environmental policy,
science, and management, the situation is way too complicated to be
aptly described by sound bites in a rhetorical war.
For their analysis, the team looked closely at yields, pesticide use,
farmer incomes, and suicide rates in India's cotton regions, both
before and after the debut of Bt seeds in 2002.
They found that on large farms with access to irrigation water,
genetically modified cotton makes economic sense—paying up for the more
expensive seeds helps control a voracious pest called the pink bollworm
in a cost-effective way.
But 65 percent of India's cotton crop
comes from farmers who rely on rain, not irrigation pumps. For them,
the situation is the opposite—reliance on pesticides and the higher cost
of the seeds increase the risk of bankruptcy and thus suicide,
the study finds. The smaller and more Bt-reliant the farm in these
rain-fed cotton areas, the authors found, the higher the suicide rate.
(An analysis that largely jibes with Shiva's, apart from her heated
rhetoric.)
Even so, the paper does not present Bt cotton as the trigger for
India's farmer-suicide crisis. Rather, it provides crucial background
for understanding how India's shift to industrial farming techniques
starting in the 1960s left the majority of the nation's cotton farmers
increasingly reliant on loans to purchase pricey fertilizers,
pesticides, and hybrid seeds, and eventually GM seeds, making them
vulnerable to bankruptcy when the vagaries of rain and global cotton
markets turned against them.
The authors note that cotton has been cultivated in India for 5,000
years, and until the emergence of the slavery-dependent cotton empire in
the southern United States in the early 1800s, "India was the center of
world cotton innovation." In the 1970s, Indian cotton farmers turned to
hybrid seeds that delivered higher yields as long as they were doused
with sufficient fertilizer. Until then, the pink bollworm—the pest now
targeted by Bt seeds—"was not a major pest in Indian cotton," they
write. But higher-yielding plants draw more insect pests, and so the new
hybrid seeds also triggered an increasing reliance on insecticides.
Bollworms evolved to resist the chemical onslaught and many of their
natural predators (other insects) saw their populations decline, giving
the bollworms a niche. Hence when Monsanto's bollworm-targeting Bt seeds
hit the market in the early 2000s, they were essentially an
industrial-ag solution to a problem that had been caused by industrial
agriculture.
As an alternative to Bt seeds, the paper shows, small-scale farmers
can successfully plant varieties of cotton that ripen quickly, before
bollworm populations emerge. As for the irrigated cotton farms that are
now successfully using the Bt trait, the authors note that India's large
farms, like many of California's, are tapping underground water that's
"unregulated and unpriced," at rates much higher than natural recharge.
They're courting a problem that may make the feared bollworm look tame
by comparison: "the impending collapse of ground water levels for
irrigated cotton."
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