The Influence of Problem Definitions on Environmental Policy Change: A Comparative Study of the Yellowstone Wildfires

In the summer of 1988, television viewers across the United States and Canada were transfixed by images of Yellowstone National Park seemingly consumed by flames as wildfires burned almost one million acres of land within the Greater Yellowstone Area. In the wake of the fires, the governments of the United States and Canada both reassessed their policy approaches to fire management and came to two very different conclusions. The purpose of this study is to explore how the wildfire problem was defined in Canada and the United States in the wake of the Yellowstone wildfires, why these definitions were so different, and what effects these different definitions have had on fire policy. As a subtext, this research also highlights the challenges inherent in science‐based decision making.     

Application of a Physics-Based Simulation Model to Examine Post-Earthquake Fire Spread

For 50 years, post-earthquake fire spread models used the basic empirical, macro approach developed by Hamada in 1951 Hamada, M. 1951. On Fire Spreading Velocity in Disasters, Tokyo: Sagami Shobo. (in Japanese) [Google Scholar]. Recently, however, a few physics-based models have emerged in which different modes of fire spread (e.g., radiation, branding) are modeled separately, more realistically, and in more detail. Using a case study for Los Angeles, this article illustrates how a new physics-based model developed by the authors can be used to estimate how much, how fast, and where fires spread, and also to provide insight into how fires spread and factors that influence fire spread.     

FIRE IN THE BRAZILIAN AMAZON: A SPATIALLY EXPLICIT MODEL FOR POLICY IMPACT ANALYSIS*

ABSTRACT.  This article implements a spatially explicit model to estimate the probability of forest and agricultural fires in the Brazilian Amazon. We innovate by using variables that reflect farm-gate prices of beef and soy, and also provide a conceptual model of field management and deforestation fires to simulate the impact of road-paving, cattle exports, and conservation area designation on the occurrence of fire. Our analysis shows that fire is positively correlated with the price of beef and soy, and that the creation of new conservation units may offset the negative environmental impacts caused by the increasing number of fire events associated with early stages of frontier development.     

Changing Fire Management in the Pastoral Lands of Cape York Peninsula of northeast Australia, 1623 to 1996

Accounts of European explorers between 1623 and 1880 indicate that fires were lit by Aboriginal people on Cape York Peninsula in northeast Australia throughout the dry season (May–October). Diaries kept by three generations of pastoralists in the Musgrave area (1913–1952, 1953–1974 and 1976–1992) show that burning activities were largely confined to a two to six week period between May and early August. The timing of burning depended on the amount and date of cessation of wet season rainfall. More rarely, ‘storm‐burning’, burning under hot conditions within a few days of the first heavy rains of the wet season, was undertaken. Long‐term pastoralists felt a responsibility to use fire wisely and had a detailed knowledge of the role of fire in land management. Their decisions to burn were based on the extent of grass curing, and soil and weather conditions, all of which affected the extent of each burn. They used early dry season fires mainly to maintain forage and control cattle movements. Storm‐burns were reputed to control woody weeds, but were used infrequently because of difficulty in controlling their spread and uncertainty as to when the next rains would stimulate new grass growth.     

Analysis of Explorers' Records of Aboriginal Landscape Burning in the Kimberley Region of Western Australia

The accounts of explorers and colonists in the Kimberley region of Western Australia were searched to find records of landscape burning by Aborigines. Analyses of these records provide estimates of the spatial and temporal patterns of fire across the region in historic times. The seasonality of fire varied across the region. In northern parts of the Kimberley landscape fire was recorded from May to October with peak levels in June and September. In southern parts of the region there are records of burning as early as February and March, through to August but no records of fire were made in late dry season months. Modern fire regimes were compared with historic by superimposing the routes taken by five explorers over a modern fire history map derived from satellite imagery. Tallies of the number of modern fires that intersect the explorer's daily and monthly route were compared with actual observations of fire made by the explorers in historic times. The results indicate an increase in early dry season fires and the overall frequency of fires across the region in modern times. Explorers' accounts were also examined to derive further information regarding Aboriginal landscape burning in different environments and to distinguish landscape burning from other uses of fire such as smoke signals and cooking fires.     

The application of forensic fire investigation techniques in the archaeological record

This paper seeks to assist in defining a role for a suite of adapted techniques of analysis and interpretation that are drawn primarily from the methods of contemporary forensic fire investigation. In so doing, the paper identifies a general paucity of literature providing detailed discussions of structural fires preserved in the archaeological record. In addition the paper provides a generalised account of the manner in which structural fires (most especially compartment fires, defined later) will tend to burn and which tools can assist in the interpretation of fire dynamics, the identification of points of origin of fire within buildings, and the response of building materials to burning. Ultimately, such an approach can improve understanding of past structures, and also provide an interpretative avenue for understanding human response to fire and the risk of structural fire in the past.     

Pillar of Fire Theories

The pillar of fire was a unique phenomenon that led the Israelites at night through the wilderness for forty years. Many theories have been offered to explain this phenomenon such as it was mythical or metaphorical and never occurred. Other explanations include burning jets of natural gas, a brazier elevated on a pole, volcanic activity, brush fires, lightning, and a comet. The large and controlled shape of the pillar of fire, its appearance only at night for forty years, and its carefully directed path have been explained as miraculous. This article includes a scientific discussion of how the pillar might have been produced, reviews the many theories offered to explain the pillar of fire, and offers several new theories.     

清代的消防组织与救火工具

清代的消防组织由属于官府的巡城官兵与属于民间的“水会”两大系统组成,行政、军事与消防的一体化管理是清代消防组织的特点。以现代人的眼光来看,清代的消防组织在管理与培训等方面已经具有现代科学化的某些内容。而纵观由太平桶到火烛车再到水龙所形成的救火工具发展的三部曲,我们也不难看到人们在与火灾进行斗争中的进步。     

Turbulent flows,fires, and explosions

Abstract

This paper describes how our understanding of turbulence has grown out of engineering practice and how, in turn, it has modified that practice. This is illustrated by discussions of a number of important combustion phenomena embracing steam and gasoline engines, gas turbines, furnaces, jet fires, fire breathing, and atmospheric explosions.     

Modelling Potential Socio-economic Determinants of Building Fires in South East Queensland

This paper investigates the relationships between areas of building fire incidence, levels of socio-economic disadvantage and the underlying socio-economic characteristics in the South East Queensland (SEQ) region, Australia. Disaggregated fire incident data was acquired from the Queensland Fire and Rescue Service (QFRS) and then aggregated to the Statistical Local Area (SLA) level. The Australian Bureau of Statistics (ABS) defined index of socio-economic disadvantage (called ‘SEIFA’) has been used as the basis to identify relationships between socio-economic disadvantage and building fires. A regression model was then developed to predict the incidence of building fires using a range of socio-economic variables. Five significant predictors were identified that include: i) percentage of unemployed, ii) proportion of Indigenous population, iii) families living in separate dwellings, iv) one parent, and v) parent families with children less than fifteen years of age. Results also show that the distribution of building fires varies markedly across the SEQ region, with some of the Brisbane inner suburbs, areas of high socio-economic disadvantage, and parts of inland SEQ associated with relatively high fire rates.     

Bushfires,Human Health Economics,and Pyrogeography

Bushfires (landscape fires) are a key Earth system process that affects humans and our societies and economies. In a recent article, we explored the coupling of humans to landscape fire through the lens of human health impacts of bushfire smoke. We noted that such an approach demands recognition of the indirect impacts and costs of bushfires that cannot be captured by simplistic proxies such as deaths directly attributable to a fire front. Evaluation of direct and indirect economic costs of bushfire disasters, and bushfire fire management remains a poorly developed research frontier that demands collaboration of expertise from a broad cross‐section of fields that often have limited experience of collaborating together. The need for such synthetic thinking about fire's place on Earth has spawned the discipline of pyrogeography.     

Forest as hazard,forest as victim: Community perspectives and disaster mitigation in the aftermath of Kelowna's 2003 wildfires

Situated within the political ecology of hazard, this article is an extended case study of the devastating 2003 wildfires in and around Kelowna, British Columbia (also known as the Okanagan Mountain Park Fire). This article reveals how compliance (or lack thereof) with fire mitigation strategies recommended by provincial, regional, and municipal agencies is complicated by differing social constructions of what constitutes ecologically sustainable forest management and community safety. Three perspectives emerge regarding the urban forests: “nature as hazard”—a volatile force to be controlled; “nature as instrumentally valuable”—a contribution to the character of one's surroundings and subsequent sense of place; and “nature as intrinsically valuable”—a distinct entity to be preserved and protected for its own sake. The article also examines how experiences of disaster influence community perceptions and result in a greater willingness to engage in fire mitigation strategies due to perceptions of heightened vulnerability. Forestry and fire mitigation agencies need to determine multiple courses of action among the varied and valid range of residents’ nature perspectives. The role of human agency in disaster mitigation must be examined, particularly as the risk of fire at the wildland‐urban interface continues to be exacerbated by encroaching human settlements and climate change.     

Home Is Where the Hearth Is: Anthracological and Microstratigraphic Analyses of Pleistocene and Holocene Combustion Features,Riwi Cave (Kimberley,Western Australia)

The manipulation of fire is a technological act. The identification of the archaeological signatures of the controlled use of fire has important implications not only for the estimations of the origins and functions of the first fireplaces but also for our understanding of prehistoric technological development and resource use. At Riwi (Kimberley region, Western Australia), excavations over two field seasons have revealed a discontinuous occupation sequence over the past 45 ka, showing numerous, different combustion features interspersed within the deposit. Anthracological and micromorphological investigations at Riwi Cave indicate that the combustion features at the site can be categorised into three types: flat combustion features (type A), dug combustion features (type B) and thick accumulations of mixed combustion residues (type C). These provide evidence for two kinds of combustion practice: (i) fires lit directly on the ground and most likely not re-used and (ii) ground ovens, the latter appearing some 10,000 years after the first evidence for occupation of the site. A comparison of the wood species identified within these combustion features with those from equivalent scattered context levels, enables an exploration of the potential factors influencing wood selection and fire use through time at the site. A detailed understanding of the relationship between wood charcoal remains and archaeological context yields significant information on changes to environmental context and site occupation patterns over time.     

Seeing the churches like the state: taxes and wealth redistribution in late antique Italy

Two key economic questions tend to be asked about the transformation of the Roman world. First, how did Roman fiscal structures continue, disintegrate and transform? Second, how did emerging churches play a role in the redistribution of wealth through new administrative structures to create a new social system, what Ian Wood has called a ‘temple society’? These two processes – one focussing on the continuity or discontinuity of the Roman economic structures and the other on churches within that system – are usually examined separately or assumed to follow, what we call here, a ‘Gallic model’. In this article, we first demonstrate that Wood’s ‘temple society’ is far more complex in its emergence in Italy than in Gaul. Second, we argue that the churches of Italy remained embedded within late Roman fiscal structures, even as they transformed during late antiquity. Fiscal arrangements, examined through the churches of Rome and Ravenna, established churches as ever more central economic actors to the state fiscal system by 600 and shaped their long-term wealth redistribution process.     

Women following fish in a more-than-human world

Drawing on ethnographic and interview research conducted in Scotland, South Australia and New South Wales, Australia, I attempt to frame the cultural, social and geographical networks created by the people who follow fish (primarily commercial fishers). My account is constructed through a ‘self-conscious storying’ (Whatmore 2008) deployed by geographers working in a more-than-human perspective. Although I find much to inspire from this approach, throughout this article the question that nags at me is how to account for women within a materialist more-than-human framework, and how to articulate a feminist politics within this epistemological and methodological space. I try to avoid admonitions about what should be done and to advance or to model an embodied glimpse of what such a politics might be.     

Going underground: experimental carbonization of fruiting structures under hearths

We show that carbonized fruits and seeds recovered from Middle Stone Age deposits in rock shelters are likely to have been carbonized as part of post-depositional processes. We buried indigenous South African fruits, nuts and seeds at pre-determined depths and distances from the centers of experimental fires. The cold ashes of the hearths and the sand surrounding them were subsequently excavated, using standard archaeological techniques and dry-screening. The fruiting structures from the oxidizing part of the fire were burnt to ashes, whereas those buried in sand under anoxic conditions survived in varying forms. Those buried 5 cm below the center of the fire were carbonized; those buried 10 cm below the center of the fire were dehydrated; and those 5 cm and 10 cm below the surface at the outer edge of the fire were unaffected. Size, moisture or oil content of the original fruit or seed did not appear to influence whether or not carbonization took place. Temperatures recorded 5 cm below the experimental fires suggest that the carbonization occurred at or before a maximum temperature of 328 °C, and also at lower maximum temperatures (152 °C) that were maintained for long periods. Even when the quantities of a particular wood are controlled, open fires may produce variable underground temperatures and the temperatures below ancient hearths would have been equally variable. We suggest that Cyperaceae (sedge) nutlets, the most numerous fruiting structures in the Sibudu Middle Stone Age archaeobotanical assemblage, occur in the shelter as a result of human activity, subsequent burial, and accidental carbonization when hearths were built directly above the buried nutlets.     

Boole Reviews

Abstract

The roof of the Archaic Temple of Poseidon (early 7th century B.C.) at the Sanctuary of Poseidon on the Corinthian Isthmus in Greece was covered by unusually large terracotta tiles. The construction of a stone temple with a tile roof represented a major advance in building design. The tiles themselves are representative of the growth in technology at that time. Reproduction of the tiles was recently undertaken as a demonstration of the tools, skills, and manpower requirements of the new technology. It is shown here that a relatively small group of men using local materials could make all of the tiles and the kiln(s) to fire them in less than two years. The major innovation was the design of the mold.     

As the drone flies: Configuring a vertical politics of contestation within forest conservation

This paper explores how the use of new monitoring technologies, including drones, are being incorporated into forest conservation, with emphasis on what is at stake politically for forest-based communities. This is a critical area to consider, as the cheapness and easy availability of drones has fostered their rapid proliferation in conservation practices, for activities as diverse as wildlife counting and fire prevention. Many have raised political concerns about these technological developments, and their potential to be used for the surveillance and spatial discipline of minority groups. For example, recent scholarship within political ecology, human geography and conflict studies makes clear that the regulatory frameworks of international conservation are being appropriated by states to pursue racialised agendas of social exclusion in former conflict zones – often with the support of international environmental actors. By justifying increased military presence; surveillance technologies; and stop-and-searches, conservation frameworks have facilitated the containment of “risky” populations and the production of new kinds of borders. However, few have yet explored what it will mean to incorporate drones into the production of territorial claims that can protect commons-based livelihoods and resist new forms of spatial enclosure. By examining the introduction of drones in the Maya Biosphere Reserve (MBR) in the Petén region of Guatemala, I reveal how satellite technologies and drones are also being used as part of community-led resistance to dispossession. Here, drones are used as part of everyday conservation practices, as part of a socio-legal process that I describe as the configuration of a vertical politics of contestation. Following the history of technological innovation in the MBR leads me to show how, despite their associations with military containment, such technologies can be used to rework spatial orders imposed by states, international actors, the army and the national elite.     

Using What's at Hand: English Catholic Reinterpretations of the Rosary, 1559–1642

This article investigates changes in rosary worship in England after Elizabeth I's insistence on Protestant conformity in 1559. It addresses how Catholics, faced with Protestant restrictions on traditional forms of worship, might have re-conceptualized religious rituals, symbols, and objects to satisfy their devotional needs. The rosary — understood as both a material object and a set of prayers — was (and is) the Catholic Church's most popular Marian devotion. Examining the prayers attached to the rosary offers insight into how English Catholics — often lacking access to priests and sacraments — understood their appeals to Mary, now portrayed as a strong, warrior-like advocate for believers' souls. Since material objects such as rosaries have long played an integral part in Catholic religious culture, examining the evolving roles of such objects opens a window through which to view the new experiences in piety available within European Catholicism, in general, and within English Catholicism, in particular, during the Reformation era.