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Capitalism Nature Socialism
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Urban Farming: The Right to
What Sort of City?
Saed
To cite this article: Saed (2012): Urban Farming: The Right t o What Sort of Cit y?,
Capit alism Nat ure Socialism, 23: 4, 1-9
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CAPITALISM NATURE SOCIALISM
VOLUME
23
NUMBER
4
(DECEMBER 2012)
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Urban Farming: The Right to What Sort of City?*$
On the 14th of May 2012, 100 University of California (Berkeley) police officers
in riot gear raided an incipient farm in Albany, California and arrested several
people, ending a month-long struggle against university plans to turn arable land into
commercial real estate. Six years prior, in South Central Los Angeles, farmers were
summarily evicted from South Central Farm, one of the largest urban farms in the
U.S.A., following the city government’s sale of the land for private gain. There were
protests, arrests, and the farm was bulldozed, only to remain vacant to this day.
Hundreds of families lost part of their food source and livelihood this way. That the
transaction transpired under dubious legal grounds and behind closed doors has only
made the long-term damage even more gratuitous. In the 1990s, relatively more
successful struggles in New York City checked the Giuliani administration’s attempt
to annihilate urban farm space through privatization. A mere list of these kinds of
urban struggles could fill many volumes.
This all sits in quite a contrast with the accolades showered on urban farming
(‘‘gardening’’ or ‘‘horticulture’’ to some) over the past couple of decades by
academics, governments, and international institutions. Many see in it wonderful
possibilities for improved nutrition, fresh food access, and new employment and
market niches (Mougeot 2005, 1113; Schmelzkopf 2002, 332333). There are also
many now-acknowledged ecological benefits of reducing greenhouse gas emissions
(e.g., lower food transport distance), resource consumption, and municipal organic
waste, and in raising biodiversity and attenuating urban heat island effects. Urban
farming can alleviate soil degradation problems by conserving, restoring, and even
generating soils, which can also function as sinks for contaminants and greenhouse
gases (Ajmone-Marsan and Biasioli 2010; Lichtfouse 2010). City farming can
simultaneously improve urban environments and public health. What better solution
to urban problems than farming? The town-country divide at long last vanquished!
So what explains the violent repression of many urban farms? Briefly, the sort of
urban agriculture desired by state officials and assorted capitalists is one that fixes
problems created by denying people access to land through forced mass evictions in
*engeldis@zmail.newpaltz.edu
$
Profuse thanks to David Correia for his critically constructive suggestions on earlier versions of this essay.
ISSN 1045-5752 print/ISSN 1548-3290 online
# 2012 The Center for Political Ecology www.cnsjournal.org
http://dx.doi.org/10.1080/10455752.2012.724776
2
HOUSE ORGAN
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favor of, for example, mining companies, and/or by denying food through such
decisions as cuts in wages and benefits or premeditated urban planning catastrophes
like ‘‘food deserts.’’1 But urban farming better not interfere with protecting that
sacrosanct of rights that is the exclusive property of the capitalist: to accumulate
capital. In fact, it may well turn out that the frequent remediation involved in setting
up farms in cities*especially in industrialized settings*will contribute to the sort of
environmental clean-up that polluting capitalists or government agencies prefer to
evade. Would it not be an irony if urban farming ultimately served to socialize the
costs of urban environmental degradation?
But the problem with urban farming hardly rests with a self-contradictory
mainstream beholden to bourgeois class interests. Leftists involved in urban social
struggles, or writing about them as academics, have themselves failed to notice the
repercussions and potentials of urban farming. A salient example is with movements
inspired by Lefebvre’s approach to analyzing and acting upon urban processes
(Lefebvre 1968). Because ‘‘nature’’ in cities is reduced to something at best secondary
to political struggles (or reducible to the social, as ‘‘second’’ or ‘‘produced nature,’’ as
if entirely malleable to social will), such leftism continues in part to reproduce the
bourgeois practices it deplores (e.g., Harvey 2010; Purcell 2002; Smith 1984).
It ironically repeats the error that Marx warned about in the Critique of the Gotha
Programme, namely that
Labor is not the source of all wealth. Nature is just as much the source of use values
(and it is surely of such that material wealth consists!) as labor, which itself is only
the manifestation of a force of nature, human labor power (1875, Section I).
Cities are not, therefore, second or produced nature. They are part of nature and are
manifestations of forces of nature, human and nonhuman. Most on the Left still
appear to have problems with this basic understanding. The case of urban farming
brings to even greater clarity the dire repercussions of socially reductionistic leftism.
The struggle for ‘‘the right to the city,’’ for example, can only bring shallow and
temporary political victories if it cannot account for the functioning of urban
ecosystems and therefore people’s health.2
This is not to argue against turning cities into food producing areas, nor is it to
suggest current urban leftism brings bodily ruin (it depends on the context and the
content of the struggle). But the effusive assessments of such urban futures leave a
trail of unrequited concerns waiting to explode and that are hardly allayed by urban
left discourse and action.
1
These are neighborhoods with little to no food shops or which are served by sellers of food of low nutritional
quality.
2
This is where such approaches as subsistence (Bennholt-Thomsen and Mies 1999), hybridity (Swyngedouw
1996), and eco-sufficiency (Salleh 2009) can be useful to advance a more effective urban politics, since their
combination gives prominence to nonhuman and gendered rural-urban linkages and health consequences.
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URBAN FARMING
3
One might, for example, be tempted to believe, given that Cuba offers the most
comprehensive example of how to devise and implement policies favoring urban
agriculture (Levins 2005), that a worldwide Cuban revolution is soon in the offing.
Of course, this is not the case (and the Cuban case anyway tends to be stereotyped as
a response to economic duress; e.g., Mougeot 2005, 3). It would imply land
distribution reforms unconscionable to landed and financial capitalists and the vast
armies of clerks, realtors, bureaucrats, and assessors, among many others involved in
the sordid trade in and speculation on pieces of land. The land question is something
urban leftist activism has done much to bring to the fore, to its credit. Still, in the
case of settler colonial regimes like the U.S., Canada, Israel, New Zealand, but also
Cuba, the matter of land implies decolonization*that is, land restitution to
Indigenous Peoples. And, in places like the U.S.A., leftist attitudes towards this has
often been dismal (Tuck and Yang 2012).
One might, as another example, be forgiven for expecting the diffusion of urban
agriculture to help usher in a new gender-egalitarian era, since it is largely women
that produce and process food from urban farms (Hovorka, DeZeeuw and Njenga
2009). But, again, this is just too fanciful in this overwhelmingly patriarchal world,
and (finally) most urban leftist thought and practice has been devoted to fighting
against patriarchy, again to its credit. As Thomas Sankara put it on the occasion of
International Women’s Day in 1987, ‘‘in its conquering phase, capitalism, for which
human beings are nothing but numerical figures, has been the economic system that
has exploited women with the most cynicism and refinement.’’3 Privileging women
farmers would surely undermine male rule (Sankara’s assassination was also an act of
misogyny). This is clearly beyond the pale of possibilities, as reflected in the writings
of Mougeot, the eminent (male) urban farming scholar, who is quick to reassure
readers that ‘‘Women’s ability to perform their multiple roles in relation to food
security may be enhanced by their participation in [urban agriculture]’’ (2005, 4).
Here also lies a fine specimen of social status conforming most predictably to
reasoning ability. It is unfortunate, however, that ‘‘right to the city’’ advocates and
others of like persuasion have not placed gender at the forefront of urban struggles.
Then there is the possibility of life-long ailments and premature death resulting
from exposure to contaminants. This is where both many urban leftists and
bourgeois ideologues converge in failing to appreciate the consequences of urban
farming or struggles over urban space more generally. Contamination is often a
lasting legacy of decades if not centuries of capital accumulation through ecological
devastation, especially through heavy metal contamination (e.g., Hough, et al. 2004;
Meuser 2010; Thornton 1991). However, parent material (out of which soils
form) unrelated to any human activity can also contribute to high soil-heavy metal
content, so one must be very careful when imputing causation (e.g., Pouyat,
et al. 2007). The emphasis here on heavy metals is because, unlike most other
3
The original reads: ‘‘dans sa phase conque´rante, le capitalisme, pour lequel les eˆtres humains n’e´taient que des
chiffres, ait e´te´ le syste`me e´conomique qui a exploite´ la femme avec le plus de cynisme et le plus de raffinement.’’
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HOUSE ORGAN
contaminants, they present a long-term, if not permanent hazard. They can
negatively impact people through soil-particle ingestion or inhalation or through
assimilation by eating food produced on contaminated soils (Kabata-Pendias and
Pendias 2001), which can lead to such destructive effects as neurological impairment
and cancer (Centeno, et al. 2005). A realistic assessment of contamination actually
necessitates multiple tests4 on soils and crops because high total soil-heavy metals
content does not necessarily mean that the heavy metals will get into crops. This is
because heavy metals have to become soluble and enter root-accessible soil water to
then be absorbed by crop roots (this is also known as bioavailability). The process
depends on the interplay of many variables, namely plant characteristics and the
interactions between chemical processes (largely pH and reduction-oxidation
potential) and the kinds of minerals (clay mineralogy, carbonates, iron oxides) and
organic matter (humin, fulvic/humic acid) that make up or are added to a soil. Heavy
metals, for example, can be stored on mineral and organic soil particles for long
periods of time and then be released sometimes suddenly into root-accessible soil
water as a result of changes in pH (Allen and Janssen 2006; Impellitteri, et al. 2001,
149, 154; Kingery, et al. 2001). What complicates the process even further is that
with changing environmental conditions, heavy metals characteristics can change
(speciation), so that they will change their degree of solubility and the kinds of
substrates on which they tend to bind (D’Amore, et al. 2005; Violante, et al. 2010).
For these reasons, total heavy metal content tells us very little, yet it is typically the
only information the public receives. The screening and monitoring of soils and
crops is anyway beyond the reach of most people’s resources. Most people’s
knowledge is also insufficient to comprehend lab results, and most people often do
not know of preventive or mitigation strategies (for examples, see Iskandar 2001;
Stuczynski, et al. 2007). Even when such strategies are known, there can be
formidable obstacles to surmount, such as when soils are so polluted that they must
be sealed (if not hauled away) and new soil imported as replacement. Yet even raised
beds may be insufficient because of heavy metal deposition from airborne dust from
vehicular traffic and nearby polluted soils and sediments (Clark, Hausladen, and
Brabander 2008; Säumel, et al. 2012). There is, therefore, much more involved in
urban soil contamination than most are willing to explore.
The matter calls into question the ways entire cities are set up and structured and
their relationship to places far away. For instance, urban farming in places like New
York City, Milan, or London relies on vast quantities of resources from the
countryside (e.g., water supplies from nearby regions) and from most of the rest of
the world (e.g., wood and metal products for crop supports and weeding). There is
no New York City, for instance, without a destructive parasitic relationship with
other ecosystems elsewhere (in this respect, the ‘‘right to the city’’ in New York,
if not premised on internationalism, ends up being a right to partake of the spoils of
world colonial domination). Urban farming in such a context would remain part of
4
Among them is sequential extraction to evaluate what kinds of soil particles bind with what species of heavy
metals under differing conditions (Allen and Janssen 2006; Zimmerman and Weindorf 2010).
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URBAN FARMING
5
the problem, especially when soil, water, and much else has to be imported as a
consequence of pollution. That is, urban agriculture and associated movements
would, whether intentionally or not, still contribute to environmental and hence
social damage elsewhere and end up preserving existing relations of domination while
temporarily and selectively cleaning up the mess generated by the capitalist mode of
production. This is likely to be the case unless urban agriculture means striving for a
complete overhaul of the city that enables reliance mostly on local resources and that
establishes mutually constructive linkages between cities and other ecosystems. This
overhaul would require, among a great number of changes, the dissolution of settler
and other forms of colonialism, egalitarian management of urban space, an end to
fossil fuel consumption, replacing impervious pavement with soil, the replacement of
all hydraulic media in all buildings with completely water recycling apparatuses based
mainly on rainwater catchers, composting toilets for fertilizer production, open areas
to establish pastures, remaking of diets and medical care so that human waste is safely
compostable, and so forth. Cities that are not highly industrialized would probably
require less drastic modification. Ultimately, an urban farming worthy of the name
means the end of the town-country split resulting from the capitalist mode of
production, and therefore an end to that mode of production.
These crucial questions are carefully avoided by mainstream urban farming
promoters. The world of urban farming is instead turned on its head and made into
yet another lucrative venture, though with bright humanitarian linings. Such
venerable national authorities as the Canadian government’s International Development Research Centre (IRDC) therefore generously disburse funds for urban
farming research seeking to conquer the universe (Mougeot 2005).5 The U.S.
Department of Agriculture (USDA) devotes resources to promote urban farming in
their usual crass ways as a business opportunity or as a source of government savings
through meals programs and other palliatives (http://afsic.nal.usda.gov/farms-andcommunity/urban-agriculture). But the crowning intellectual achievement belongs to
such esteemed agencies as the United Nations Food and Agriculture Organization
(FAO), branding the recent spurt in city food production as a prospect for ‘‘Greener
Cities’’ that will rescue the ‘‘developing world’’ from guaranteed urban overpopulation catastrophe. This is to be realized by having officials freely appropriating
those ‘‘creative solutions that the urban poor themselves have developed,’’ including
producing food in and around cities under life-span reducing living standards (FAO
2010, 3). Perhaps such officials, including the FAO’s authors of this most
enlightened report, could instead trade places with slum-dwellers and apply such
innovative spirit themselves.
5
Mougeot (in the preface to the edited volume) takes special pride in informing readers that this ‘‘Agropolis
programme’’ was inspired by the National Integration Programme of Brazil, which he strangely fails to mention
was instituted under military dictatorship in the 1970s and serves as a settler colonial policy against Indigenous
Peoples in Amazonia (Fearnside 1984).
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6
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There are yet other clever examples of evading fundamental issues. One is by
deliberate pro-capitalist revisionism. In the Panglossian view of the FAO, ‘‘cities have
been places not of misery and despair but of opportunity*for economies of scale,
employment and improved living standards, especially for rural people seeking
a better life. They have served as engines of social progress and national economic
development.’’6 And to add farce to tragedy, the report then claims that, unlike
‘‘low-income countries,’’ in regions like North America, ‘‘urbanization . . . took
centuries, spurred on by industrialization and steady increases in per capita income’’
(FAO 2010, 3). How cities act as ‘‘engines of social progress’’ where people enjoy
‘‘steady increases in per capita income’’ has already been illustrated above. It gives
little comfort and commensurably little surprise to know that such an internationally
influential agency could still repeat the tales rich white males tell themselves and
force upon the rest. For those very sharp people at the FAO, urban farming has little
to no connection to relations of power; nor, apparently, to struggles over land that
subtend urban agriculture. But in the wonderful bourgeois world of conveniently
fragmented reality, one must stick to the decontextualized topic at hand.
The world, however, is not composed of isolated compartments and replicable
units. In Kobaya, just outside of Conakry, Guinea, the expansion of urban area,
where land is a market commodity, threatens women farmers’ livelihoods, which
sustain many men and is based on producing on non-marketable land to sell fresh
produce to urban dwellers (Keita 2012). The issue here would then hardly be how to
enhance urban farming and more about the town-country linkages that enable
survival in Conakry and that are being undermined by urbanization. It should also be
occasion to question the treatment of urban land as a commodity and the social
relations (arguably well beyond Conakry, seeing Guinea’s international role as
bauxite exporter) that create urban sprawl and mass dependence on food grown
outside the city. In most of the world, cities have anyway rarely excluded food
production, even when under direct European colonial dictatorship (Smit, Nasr, and
Ratta 2001). Unlike most urbanized European and European settler colonial regimes
(e.g., North America, Australia), agriculture forms part of inter-generational
continuity among the majority of urban dwellers worldwide. The murderous
policies that brought about sustained conflagration and mass depopulation in the
countryside in parts of Far West Asia (‘‘Europe’’) should not be confused for
universal historical trends (Moore 1984). In this light, the very notion of greening
cities belies an obdurate Eurocentric misunderstanding of reality, a misunderstanding
sustained by power relations.
Lest one be too quick to judge, the urban farming struggles described above and
that confront such power relations make it by no means clear that urban farming
promotes egalitarian objectives. There is a sometimes latent and sometimes explicit
questioning of land distribution and private property, especially through community
6
There seems here to be a hint of malodorous convergence with those on the ‘‘Left’’ that continue to view the
non-urban as political backwater.
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URBAN FARMING
7
gardens, and such could form the basis for an organized anti-capitalist front at the
national level if alliances can be forged effectively with, say immigrant rights, prison
abolitionist, feminist, and environmentalist movements. Some linkages are being
made, but they remain limited to a small minority of people involved in direct
political struggle. The Obama presidency symbolically manipulating urban farming
(making it, among other things, appealing for the real estate market) and the USDA,
through extension agents and other means, being involved in fostering urban farming
as a business may portend less promising horizons. In the U.S.A., as elsewhere, the
social and ecological ends of urban farming are contingent, as much else, on the
outcome of struggles over the control of the means of production and the evolving
relationship between people and (urban) ecosystems. And for those living in urban
ecosystems like the area of Garfield Avenue in Jersey City, New Jersey, U.S.A.,
a majority African-American and Latin community, poisoned by capitalists through
decades of carcinogenic hexavalent Chromium emissions, any mellifluous depictions
of urban farming must seem a cruel racist joke, as would be any facile calls for the
right to the city.
For regardless of political victories, ecosystems cannot be reshaped at collective
will, especially not those that are scarred by heavy metal pollution. Lefebvre-inspired
urban leftist activists therefore beware: the right to the city can be a most suicidal
political demand when biophysical processes and the state of ecosystems elsewhere
(on which cities depend) are not made central to the struggle. Nevertheless, urban
farming, if its anti-capitalist potentials are understood, linked intimately to social and
ecological processes in the countryside, and put into practice on egalitarian
principles, could be a way to an ecosocialist future.
* Saed
References
Ajmone-Barsan, F. and M. Biasioli. 2010. Trace elements in soils of urban areas. Water Air and Soil
Pollution 213: 121143.
Allen, H.E. and C.R. Janssen. 2006. Incorporating bioavailability into criteria for metals. In Soil
and water pollution monitoring, protection, and remediation. I. Twardowska, H.E. Allen, and
M.A. Häggblom, eds. 93105. Dordrecht: Springer.
Bennholdt-Thomsen, V. and M. Mies. 1999. The subsistence perspective: Beyond the globalized
economy. London: Zed Books.
Centeno, J.A., F.G. Mullick, K.G. Ishak, T.J. Franks, A.P. Burke, M.N. Koss, D.P. Perl, P.B.
Tchounwou, and J.P. Pestaner. 2005. Environmental pathology. In Essentials of medical
geology: Impacts of the natural environment on public health. O. Selenius, B. Alloway, J.A.
Centeno, R.B. Finkelman, R. Fuge, U. Lindh, and P. Smedley, eds. 563594. Amsterdam:
Elsevier.
Clark, H.F., D.M. Hausladen, and D.J. Brabander. 2008. Urban gardens: Lead exposure,
recontamination mechanisms, and implications for remediation design. Environmental
Research 107: 312319.
Downloaded by [Mr Salvatore Engel-Di Mauro] at 11:54 02 November 2012
8
HOUSE ORGAN
D’Amore, J.J., S.R. Al-Abed, K.G. Scheckel, and J.A. Ryan. 2005. Methods for speciation of
metals in soils: A review. Journal of Environmental Quality 34 (5): 17071745.
FAO. 2010. Growing Greener Cities. http://www.fao.org/ag/agp/greenercities/pdf/GGC-en.pdf
Fearnside, P.M. 1984. Brazil’s Amazon settlement schemes: Conflicting objectives and human
carrying capacity. Habitat International 8 (1): 4561.
Hanson, D. and E. Marty. 2012. Breaking through concrete: Building an urban farm revival.
Berkeley: Univ. of California Press.
Harvey, D. 2010. Organizing for the anti-capitalist transition. Human Geography 3 (1): 117.
Hough, R.L., N. Breward, S.D. Young, N.M.J. Crout, A.M. Tye, A.M. Moir, and I. Thornton.
2004. Assessing potential risk of heavy metal exposure from consumption of home-produced
vegetables by urban populations. Environmental Health Perspectives 112: 215221.
Hovorka, A., H. DeZeeuw, and M. Njenga. 2009. Women feeding cities: Mainstreaming gender in
urban agriculture and food security. Rugby: Practical Action.
Iskandar, I. 2001. Environmental restoration of metals contaminated soils. Boca Raton: CRC Press.
Kabata-Pendias, A. and H. Pendias. 2001. Trace Elements in soils and plants, Third edition. Boca
Raton: CRC Press.
Keita, M. 2012. The Guinean women who earn a little coin from gardening. IPS News. July 10.
http://www.ipsnews.net/2012/07/the-guinean-women-who-earn-a-little-coin-from-gardening/.
Kingery, W.L., A.J. Simpson, and M.H.B. Hayes. 2001. Chemical structures of soil organic matter
and their interactions with heavy metals. In Heavy metals release in soils. H.M. Selim and
D.L. Sparks, eds. 237245. Boca Raton: Lewis Publishers.
Lefebvre, H. 1968/2009. Le droit a` la ville. Paris: Economica.
Levins, R. 2005. How Cuba is going ecological. Capitalism Nature Socialism 16 (3): 725.
Lichtfouse, E. 2010. Society issues, painkiller solutions, dependence and sustainable agriculture. In
Sociology, organic farming, climate change and soil science. E. Lichfouse, ed. 118. Dordrecht:
Springer.
Marx, K. 1875. Critique of the Gotha Programme. http://www.marxists.org/archive/marx/works/
1875/gotha/.
Meuser, S. 2010. Contaminated urban soils. Dordrecht: Springer.
Moore, M. 1984. Political economy and the rural-urban divide, 17671981. Journal of
Development Studies 20 (3): 527.
Mougeot, L.J.A. 2005. Introduction. In Agropolis. The social, political and environmental dimensions
of urban agriculture. L.J.A. Mougeot, ed. 129. London: Earthscan.
Pouyat, R.V., I.D. Yesilonis, J. Russell-Anelli, and N.K. Neerchal. 2007. Soil chemical and
physical properties that differentiate urban land-use and cover types. Soil Science Society of
America Journal 71: 10101019.
Purcell, M. 2002. Excavating Lefebvre: The right to the city and its urban politics of the inhabitant.
GeoJournal 58: 99108.
Salleh, A., ed., 2009. Eco-Sufficiency and global justice: Women write political ecology. London: Pluto
Press.
Sankara T. 1987. La libération de la femme: une exigence du futur. http://thomassankara.net/spip.
php?article40&langfr.
Säumel, I., I. Kotsyuk, M. Hölscher, C. Lenkereit, F. Weber, and I. Kowarik. 2012. How healthy
is urban horticulture in high traffic areas? Trace metal concentrations in vegetable crops from
plantings within inner city neighborhoods in Berlin, Germany. Environmental Pollution 165:
124132.
Smit, J., J. Nasr, and A. Ratta. 2001. Urban agriculture: Food jobs and sustainable cities. New York:
United Nations Development Programme.
Smith, N. 1984. Uneven development: Nature, capital and the production of space. Oxford: Blackwell.
Downloaded by [Mr Salvatore Engel-Di Mauro] at 11:54 02 November 2012
URBAN FARMING
9
Stuczynski, T., G. Siebielec, W. Daniels, G. McCarty, and R. Chaney. 2007. Biological aspects of
metal waste reclamation with biosolids. Journal of Environmental Quality 36: 11541162.
Swyngedouw, E. 1996. The city as a hybrid: On nature, society and cyborg urbanization.
Capitalism Nature Socialism 7: 6580.
Thornton, I. 1991. Metal contamination of soils in urban areas. In Soils in the urban environment.
P. Bullock and P.J. Gregory, eds. 4775. London: Blackwell.
Tuck, E. and K.W. Yang. 2012. Decolonization is not a metaphor. Decolonization: Indigeneity,
Education & Society 1 (1).
Violante, A., V. Cozzolino, L. Perelomov, A.G. Caporale, and M. Pigna. 2010. Mobility and
bioavailability of heavy metals and metalloids in soil environments. Journal of Soil Science &
Plant Nutrition 10 (3): 268292.
Zimmerman, A.J. and D.C. Weindorf. 2010. Heavy metal and trace metal analysis in soil by
sequential extraction: A review of procedures. International Journal of Analytical Chemistry
2010, Article ID 387803, 7 pages.