Friday, April 5, 2013

Critique of Penna's The Human Footprint


In his 2010 monograph The Human Footprint, environmental historian Anthony Penna argues that the environment and world history cannot be understood without a billion-year scope. Combining the growing fields of both environmental and world history, he synthesizes the entire history of the earth in about three hundred pages. The first two chapters are entirely pre-historical and address the formation of the modern earth and the evolution of humanoids, ending with the dominance of homo-sapiens.  The remaining chapters are arranged thematically and address the following: Food production, population fluctuation, urbanization, mining/manufacturing, industrialization, trade, energy, and climate. Within each chapter, Penna explains how humans and the environment have interacted historically beginning in the pre-ancient world and ending very close to present-day. He ends his text with a reflective commentary on how “no species has changed the natural world as significantly as Homo sapiens”[1] mainly for the worse.
            Penna’s text fits, as it is largely a historical synthesis, fits within a large body of both world and environmental histories. He draws largely on the environmental work of J.R. McNeill, Vaclav Smil, and Alfred Crosby, the economic studies of T.H. Breen and K.N. Chaudhuri, and even the technological histories of David Nye and Lewis Mumford just to name a few. In his essay “World History and Environmental History,”[2] Kenneth Pomeranz also demonstrates how the study of environmental history can complement the field of world history. While asserting that historical research is generally conducted along regional lines, Pomeranz contends that the environment, which does not recognize political and cultural boundaries, is an ideal lens for examining history from a global perspective. Additionally, since some version of imperialism, state-making, developmentalism and resistance are universal to environmental history over very large periods of time, it allows historians to make very large scale comparisons in their studies. By examining world history through an environmental lens, “reinforce[ing] the still-contested point that the modern world was not simply born in Europe,”[3] scholars are able to examine historical consequences in an extremely far reaching manner, from pre-historical times up to current problems with global inequalities. This is clear in The Human Web as Penna tries to give equal historical importance to issues like ancient mining practices and coal pollution from the nineteenth century.
Penna’s integration of the study of technology with that of the environment is a tactic similar to that of Sarah Pritchard in Confluence, her 2010 book that examines the history of the Rhone River, though there are some major differences. In her book she assumes that not only does the natural world have an agency, but, like in the case of Bruno Latour’s “quasi-objects,” there is no real way to divide the study of nature from the study of humans. Though many historical actors and historians alike have attempted to separate nature from technology, she shows that they are necessarily linked. But in her environmental history she integrates the history of technological systems, “artifacts, practices, people, institutions, and ecologies.”[4] She brands this sort of study to be envirotechincal analysis. The systems that envirotechnical studies analyze encompass not only everything that would traditionally fit within the realm of environmental history, but also all of the social, cultural and political dimensions of the history of technology. By creating this field, she makes clear a concept that many previous historians have implied: the indivisible link between technology and the environments where they are used. Though Penna also makes many of these connections, after his second chapter, he makes distinction between human society and nature as separate entities that are frequently at odds. This could be due to his age. Though Penna was clearly a pioneer in the field, in the generation of world environmental historians like Stephen Pyne, Carolyn Merchant, and Alfred Crosby, later generations of environmental historians such as William Cronon, J.R. McNeill, along with Pritchard start to consider humans as a part of nature that cannot be analyzed independently and really cannot ever be at odds with each other. In fact, they question previous ideas that there even has been a “natural balance” in the environment that could have been interrupted by people.
            This brings up another issue in Penna’s text. Penna’s first two chapters act as a way to show how geological events such as the formation of the Himalayas impacted the long-term climate conditions in the area and therefore the eventual human land use there. The chapters were reminiscent of a high school environmental science textbook. Though they were very interesting, I am not sure that they really contributed to his text. The events that he narrates occurred so long before the existence of people that it is unclear whether or not they contributed to events in human history. Additionally, these chapters assume that historians must accept current science in order to understand history. This is problematic for any historian of science. Almost every scientific paradigm from the past has been disproved and it stands to reason that many of the current scientific paradigms are also culturally and socially determined and do not necessarily represent any objective truth. It also forces a lot of speculation about ‘what could have happened’ in the past without knowing what actually did. This section is especially problematic due to Penna’s stylistic choices. His grammar is especially poor and the quotations from his sources are awkwardly situated within the paragraphs. This gives the impression that he is unclear about the science that he is citing. It also means that the reader is far less efficient and invests more reading time than necessary to understand the content. Another issue with The Human Footprint and environmental histories generally is the fact that they often contain a lot of presentism. The study of environmental history, which became widely popular in the late 1980s, emerged alongside the environmentalist history. This leads to the problem of taking modern concerns and transporting them into the past where they did not really exist. On this note, it can lead historians, like Penna does, into adopting a moral or political stance in their work. Though it does essentially negate any pretense of an objective history, this is not necessarily negative. In fact, it can also make the study of history relevant to many more people and applicable to many of today’s political and social issues. A final issue with Penna’s text is also his attitude of environmental determinism. Penna is not the only historian who engages in environmental determinism[5] but since he begins his narrative so early in earth’s history, it is especially clear in his book. It suggests that there is some measure of inevitability in history; if people are from an environmentally suitable place, they will be economically successful. Of course, this is almost a tautology. In the words of Eric Hobsbawn: “what happened was inevitable because nothing else happened.”[6]
One unique aspect of Penna’s book is his large discussion about the environment in urban history. Though some historians such as Martin Melosi, and Joel Tarr and Clay McShane have recently examined the history of urban environments coming from a history of technology perspective, traditionally, environmental historians have ignored the urban landscape, possibly due to a perception that once urbanized, a landscape no longer has any value as an environmental space.[7] The main ways that historians have embarked on this sort of environmental history is through the examination of waste management, disease control, and the role of animals in history. Penna engages with these topics, explaining the role of both infectious and environmental disease in chapters four, six, seven, and nine; waste management in three, five, six, and seven; and animals in four, five, seven, and nine. He also engages in the growing field of energy history. This was explored at length by Alfred Crosby in Children of the Sun, who basically argues that the history of humanity has been driven by the search for more energy.[8] Though he does explore the use of animal muscle power in industrialization, he does not examine the role of animals as energy storage units. Sam White in particular has shown the value of pigs as energy depositories for excess calories that could be harvested in times of energy shortages. Asian pigs in particular were such valuable resources that they managed to spread all over the world and replace nearly all other varieties of pig. [9]
The Human Footprint certainly offers many ways that one could examine the environment and world history. However, I am not sure that he contributes much new to the field as he only synthesizes the work of others. Of course it is perfectly possible to write an original argument based on the research of others like McNeill and McNeill did in The Human Web, but since Penna’s text lacks any specific narrative other than that people and their environments impact each other. Additionally, large macro-histories present many problems particularly in overgeneralization and even threaten to venture on superficial and essentialist versions of history. This is not necessarily completely negative. The Human Footprint has the capacity to introduce concepts of “big history” and environmental world history to a lay audience or a low-level college classroom, readers who would be unlikely to appreciate a more serious academic work. As such, despite some problem areas, this text could easily have a valuable function for designing a course on the environment and world history.


[1] Penna, Anthony N. The Human Footprint: A Global Environmental History. Malden, MA: Wiley-Blackwell, 2010.
[2] Pomeranz, Kenneth “World History and Environmental History,”[2] in Burke, Edmund, and Kenneth Pomeranz. The environment and world history. Berkeley: University of California Press, 2009. p. 3-32
[3] Ibid 8
[4] Pritchard, Sara B. Confluence: the nature of technology and the remaking of the Rhône. Cambridge, Mass: Harvard University Press, 2011. p. 19
[5] See Jared Diamond, William McNeill’s Plagues and Peoples
[6] Hobspawn, Eric “Marx and History” New Left Review I/143 (January 1987): 39-50 p. 43
[7] Di Chiro, Giovanna “Nature as Community: The Convergence of Environmental and Social Justice” Cronon, William. 1996. Uncommon ground: rethinking the human place in nature. New York: W.W. Norton & Co.
[8] Crosby, Alfred W. Children of the Sun: A History of Humanity's Unappeasable Appetite for Energy. New York: W.W. Norton, 2006.
[9] Sam White, “From Globalized Pig Breeds to Capitalist Pigs: A Study in Animal Cultures and Evolutionary History,” Environmental History 16 (January 2011): 94–120.