Two key twentieth-century inventions
have made it possible to feed the current human population on this
planet. The first, which Alan Weisman (
Countdown) calls
the most important invention in the modern era, is the Haber-Bosch
process (1909), which has enabled modern farmers to fix atmospheric
nitrogen, vastly increasing the amount of nitrogen available to plant
growth from what Nature has bequeathed us through the use of legumes.
The second is Norman Borlaug's research (
Nobel Peace Prize,
1970) leading to a dwarf disease and mildew-resistant strain of
wheat, ushering in the Green Revolution, which has enabled poor Third
World farmers to vastly increase their yields. India has gone from
being a big importer of food in the 1960's to a net exporter now,
thanks to the new strains of wheat. These two developments have
extended our numbers from 1.75 billion in 1910 to 7 billion today.
Being able to fix atmospheric nitrogen
has enabled us to feed 7 billion people, along with new seed strains
from the steady, Herculean labors of Borlaug and his research
associates. But nitrogen fertilizer is very costly in terms of CO2
use, and its regular overuse by farmers has created another
transgressed boundary, the Nitrogen Cycle. Now, with the prospect of
9-10 billion by the end of this century, GM seeds put us on the
threshold of making the next leap in yields, keeping within the Land
Use limits that have us crowding the other species in the Cenozoic
Ark. This is because GM seeds enable twice the grain yields of
organic farming. This is the most important claim in the book. And
if, as Lynas suggests, biotech researchers can find a way to induce
grainseeds to fix their own nitrogen, that next leap would be
assured.
Most of the planetary boundaries are
involved with food production, which is not surprising, since feeding
our species is the biggest single operation with which we task our
host. Climate Change (CO2 emissions, but also methane); nitrogen
cycle, land use, freshwater use, toxins, and of course biodiversity
loss, which the Planetary Boundaries group ranks as number one, just
ahead of climate change. Lynas argues that industrial ag, with the
help of GMO's and intelligent use of market capitalism, is far more
likely to feed the mass of humanity than traditional agriculture. In
addition to huge conservation of land, he points to savings in
freshwater usage, though two other boundaries don't fare as well, the
nitrogen cycle and toxins. In these cases, though, he feels that new
GM crops can help reduce both fertilizer and insecticide/herbicide
applications. And he thinks many of the approaches of organic
farming, including intercropping and biological pest control, can
help in concert with GMO's.
Lynas accepts the importance of
thinking ecologically, and grants the fact that this is now a matter
of regular policy, business, and political concern - a huge victory
for the environmental movement. But as activists, Greens tend not
just to educate, but to prescribe, and this is where Lynas believes
they once again go wrong in terms of agriculture. Since he was once
one of the key anti-GM voices in the UK, he understands the dynamics
well. As the journalistic voice of the 29 scientists in the
Planetary Boundaries group, he extends the frame of ecological
thinking, giving us a more complex and factually accurate basis for
judging what are the appropriate tools and methods. For me, this
means I must cooly take into account all the boundaries, not just
accept the bundle of received opinions intertwined with deeply-held
values and gut passions which have guided me heretofore.
I am a longtime organic advocate and
organic gardener. And definitely anti-GMO. More than three decades
ago, reading Jacques Ellul, I was struck by the gravity of the
genetic encoding issue. If we started messing with that, I felt, we
were crossing a line, eating not only from the Forbidden Tree, but
creating an entirely new tree from which we would eat still more.
Monstrous hubris, no?. Now we are routinely playing god, modifying
the gene sequences to fit our needs, in agriculture as well as
medicine. Monsanto, the biggest player in agricultural seedstock and
chemical weed management, has recently won the
World Food Prize
(mistakenly called the “Nobel Prize for Agriculture”). Yet
Monsanto is Greens' most hated agriculture corporation, the model for
all that is wrong in industrial agriculture. If Lynas is right, I
must be willing to rethink the once-sacred boundary of plants'
genetic codes.
Beyond the issue of organic purity,
what about the huge human population all these agricultural
breakthroughs has afforded? Have we not already transgressed the
number of human beings that the biosphere can sustainably support?
Lynas insists that there is no numerical boundary for our population.
Rather, we can reproduce as much as we would like as long as the nine
boundaries are respected. But this is the man who cheerily says we
have “only” broken three of the boundaries. Borlaug, on the other
hand, lived under the Malthusian shadow. He felt his discoveries
would provide a “temporary success in mankind's war against hunger
and deprivation,” a breathing space in which to deal with the
“Population Monster.”
My own boundary for human population, a
gut number after reading many accounts from anthropological and green
farming perspectives (while dismissing futurists and demographers,
whose numbers I simply could not abide) is around 2 billion people –
where we were at the dawn of modern agriculture. My guiding
assumptions as I came up with this figure were principally using
organic farming, leaving enough habitat for a significant portion of
our Cenozoic cousins to survive, and enough fresh water for our
species' activities, within reasonable limits that would preserve
water for the other 8-10 million species. No matter that Donella
Meadows, lead author of
Limits to Growth, figured we could feed 10-12 billion. Bless her heart, she was sharp,
but died an incurable optimist. That was not the kind of world I
wanted to live in.
Labels: Alan Weisman, Green Revolution, Haber-Bosch, human population limits, Limits to Growth, Monsanto, nitrogen cycle, Norman Borlaug, planetary boundaries, World Food Prize
I voted this
week. How about you? It is a satisfying act, especially during a
Presidential year. No, I'm not as excited as I was last time. It
was particularly sweet in 2008 to watch the returns with my mother,
living out her life in a Republican (owner and inmates) extended care
facility in Pennsylvania. She was so proud of her native North
Carolina helping to deliver “my President.” My mother has
passed, and we are the end of a campaign without any serious issue
other than the economy. No matter who wins this time, we in the
climate movement know that our work redoubles with the new
administration, for this is effectively the last time we get four
more years (see my August post). If we don't seriously deter
carbon emissions by 2016, the CO2 momentum will be unstoppable.
In a letter to
the editor a few weeks ago, I said it was not such a bad thing that
the fairly weak cap-and-trade bill that passed the US House in 2009
failed in the Senate. If things had gone otherwise, we might have
congratulated ourselves and become prematurely complacent.
Cap-and-trade failed in Europe and Japan because the system was
subject to gaming and manipulation. What we need is a carbon tax,
which international leaders from both left and right have tried to
enact. A carbon tax is fairer and much harder to cheat, the main
issue being pricing carbon high enough to put a brake on CO2
emissions, encouraging rapid development of alternative energy
sources. Senator Maria Cantwell's CLEAR act was a brave, though
flawed start.
On the eve of
the 2012 election, it is almost absurd to be discussing the
possibility of government being able to do anything about the
impending climate doom I outlined in the last two posts. Though
dissatisfaction with Congress is at record levels, pundits predict
the GOP will retain its hold on the House, while the Democrats are
likely to barely hold onto the Senate, an essentially frozen
institution shackled by its own bizarre rules. So even if the
candidate who has most consistently aligned himself with science in
the past wins, the chances of getting something done through the
legislature is close to zero. Perhaps our nation's approach to
international climate action needs to shift.
Looking at the
failure of international negotiations to slow down climate change, MIT policy wonk David Victor
argues in
Global Warming Gridlock for a new strategy, a series
of bilateral agreements among countries with similar goals and
interests. Immediately, I thought of the US and China, who together
produce over 50% of the world's emissions. We are also huge trading
partners. A bilateral agreement with China, preposterous as it
seems, could turn nationalist competition into global climate
security. Like the Russians with their space program in 1960, China
is ahead in the Green Revolution, giving it more resources by far
than any other country (though admittedly they are still challenged
by the growth of their grid, still mostly fueled by coal). Such a
priority shift in a somewhat frosty relationship could definitely
dampen global warming in one huge blow. And of course there are
other parties highly motivated to work against climate change,
including the large economies who were signatories to the Kyoto
Accord. With a new international accord proving unlikely, bilateral
treaties modeled on trade accords could work with a carbon tax to
achieve goals in CO2 reduction. The favored model is tax and
distribute, and the distribution just might be tailored to offset the
huge inequalities in historical carbon production.
Sure, this is a
tall order, but the US diplomatic corps is large, with some very
talented people. China is ramping up its diplomats, and its climate
scientists have the ear of the regime. The biggest obstacle remains
massive denial here in the US fueled by a calculated attempt by think
tanks and ad agencies funded by Big Carbon. The PBS program
Frontline recently aired a report on the key players in this process. The alarming shift in
public opinion is hugely abetted by the Republican Party, which is
fast cleansing itself of those who have the courage to go on on
record that anthropogenic climate change is for real. We need to
undo the right wing assault on climate science and the coalition of
the Tea Party with the Christian Right.
Secular
environmentalists and liberal Christians need to form bonds with more
conservative Christians to elevate ecojustice to its fundamental
position as a Christian witness. West Coast evangelicals include a
significant, vocal minority of young folks who are putting their
bodies on the line, tree-huggers for Christ. A large number of
citizens signed a petition to Jim Lehrer to ask a climate change
question in the first debate. At the second,
Young Evangelicals for Climate Action met in silent prayer under banners to awaken the
campaign to the enormous centrality of climate change. Their mentor,
Richard Cizik, though thrown out of the National Association of Evangelicals for supporting committed gay relationships, continues to fire up steady
crowds who come to hear his
prophetic climate action message.
And of course we
need political leadership. A first-term President Obama made the fateful
choice to prioritize health care. After that protracted, draining
battle, the 2010 elections ended his window of opportunity for major
legislative initiatives. A second-term Obama would not have to work
for re-election, leading hopeful liberals and progressives to dream
that he might bust out of his prison. Thus far he hasn't shown that
kind of leadership, consistently being a pragmatic deal-maker. But
a climate deal with China, though initially radical, would require a
lot of the lawyerly deal-making that he finds natural.
Labels: bilateral climate agreements, Cantwell, cap-and-trade, carbon tax, CLEAR, Frontline, Global Warming Gridlock, Green Revolution, Kyoto Protocol, Richard Cizik, Young Evangelicals for Climate Action