Potential Focusing Projects and Policy Change

Why do policies change dramatically? Most prominent theories and many empirical studies of policy change address that question with attention to external shocks to policy systems or focusing events. These shocks or events are usually described as unplanned, unpredicted jolts such as global crises or natural disasters. I assert a role for focusing projects. These planned activities continue traditional priorities in an issue but do so to a degree perceived as excessive by enough people to shatter seemingly stable policy systems. I then propose a theoretical framework to explain the varying impacts from such projects. The framework uses two dimensions: one that accounts for the mobilization of pro‐change forces and one that assesses policy learning by members of pro‐status quo coalitions. I examine this framework in the context of changes to dam‐building policies in four diverse political settings: United States, Australia, Canada, and China. I find intriguing similarities between the focusing projects in these different contexts but also considerable variation in the extent to which they produce policy change.     

The Symbolic Politics of Belonging and Community in Peri‐urban Environmental Disputes: the Traveston Crossing Dam in Queensland,Australia

This paper examines a recent dispute generated by the Queensland State Government proposal to build the Traveston Crossing Dam on the Mary River in southeast Queensland, Australia. It is particularly concerned with the ways in which interrelated issues of belonging, community identity, and social diversity were negotiated during the anti‐dam campaign. As an unusual alliance of farmers, environmentalists, urban retirees, some Aboriginal people and others, it takes a view of the anti‐Traveston Crossing Dam campaign as a fluid network of people and approaches the notion of community identity as the symbolic construction of similarity. Locally specific, the paper describes pertinent aspects of community politics in the context of rural socioeconomic change, and the mobilisation of heritage. With regard to local senses of belonging, it also discusses the involvement of Aboriginal people during the campaign. More broadly then, this paper attempts to make an ethnographic contribution to the study of environmental disputes and the politics of alliance in peri‐urban areas of settler‐descendant societies such as Australia.     

ELECTRIFYING AFRICA: AN ENVIRONMENTAL HISTORY WITH POLICY IMPLICATIONS

The European Union anticipates alleviating future energy shortages and fulfilling renewable energy mandates by importing “green” electricity from Africa. Historical precedent and environmental consequences have largely been ignored. This article presents an environmental history of African electricity generation at a continental scale, tracing its parallel developments with colonialism, as well as its pursuit in the independence eras of development assistance and neoliberalism. Initially electricity served European interests. Independent governments' development policies involved electrification primarily for industrial development; in North Africa, universal access was also a priority. Recurrent themes and cycles of environmental constraint, environmental disruption, and displacement of consequences from one ecosystem to another are addressed. Highlighted are inter‐relationships among electricity generation, fuel supplies, ecosystems, and water cycles. Late twentieth century technologies and globalized markets re‐valued African rivers and deserts as potential energy sources. Mega‐engineering projects were rejuvenated or proposed. Rural electrification was labelled uneconomic social welfare unrelated to economic development policies of selling power through national, regional, continental and intercontinental interconnections. Historical analysis suggests new areas of research for sustainable development and alternatives to declensionist narratives. Decentralized, small‐scale plants offer models of electricity supply for industrial and domestic needs, while investment in rural electrification produced measureable economic benefit at national levels. Will the EU renewable energy mandate simply displace Europe's environmental problems to Africa? Can Africa afford another water‐intensive export commodity? Will the New African Century follow well‐established patterns of exploitation, or take new, sustainable directions?     

Water,Wind, Wood,and Trees: Interactions,Spatial Variations,Temporal Dynamics,and their Potential Role in River Rehabilitation

Recent Australian research has quantified the role of large wood (wood of any origin and length with a diameter greater than 0.1 m) in dissipating stream energy, forming pool habitats by local bed scour, protecting river banks from erosion, and damming rivers with long rafts causing avulsions. Large wood in Australian streams is sourced by a range of processes from the nearby riparian zone which has usually been degraded by post‐European settlement vegetation clearing. Large wood loadings within the bankfull channel are dependent not only on the type and quality of the riparian plant community but also on bankfull specific stream power, channel width, and the processes of large wood delivery to the stream. While bank erosion and floodplain stripping by catastrophic floods are obvious and important delivery mechanisms, treefall and trunk and branch breakage by strong winds during tropical cyclones and severe storms are also significant in the tropics. Furthermore, wood decay and downstream transport produce temporally dynamic large wood distributions. The longevity of natural large wood structures in rivers, such as rafts, debris dams, and log steps, requires determination. River rehabilitation programs need to not only include the reintroduction of large wood, but also carefully plan the spatial distribution of that wood, the most appropriate type and range of large wood structures, and, most importantly, the revegetation of the riparian zone to ensure a natural long‐term source of large wood. Exotic species management is an essential part of river rehabilitation.     

Importance of Monitoring,Behavior Analysis,and Diagnostic Techniques for Preservation of Great Historical Structures

A synthetic overview is presented of the motivations, technological possibilities, and benefits of the practice of providing large structures with monitoring installation and interpretative activities. Starting from the large body of experience gained in the field of dam engineering, the gradual penetration of these techniques in the area of preservation of monumental building is surveyed. Particular attention is dedicated to the case of the Brunelleschi Cupola in the Florentine Cathedral of Santa Maria del Fiore. The more pressing needs for the next-future development of these studies and practices are then enunciated, with the auspice that the obstacle posed to their diffusion by the difficulty of collecting adequate financial funds may be overcome in the best interest of the conservation of a precious historical-cultural heritage.     

The need for river management and stream restoration practices to integrate hydrogeomorphology

There is growing support amongst scientists worldwide about the need for a shift in river management approaches to include hydrogeomorphic processes. However, the degree to which these concepts are transferred to governmental agencies and practitioners varies widely. In Quebec, for example, many stream restoration projects are based on the (incorrect) assumption that river mobility and its inevitable consequences (bank erosion of meanders, presence of woody debris in the channel) are problematic for salmonids. This paper presents examples drawn from current guidelines on stream restoration for fish habitat in Quebec to demonstrate the need to improve the knowledge exchange among scientists and decision makers about the positive impact of river mobility and large wood dynamics on biodiversity. Our observations reveal that existing guidelines for stream restoration in Quebec need to be revised to better integrate hydrogeomorphic concepts and to no longer assume that maintaining rivers in a static state is beneficial for fish. Adopting the “freedom space for rivers” approach would likely result in improved habitat as it combines natural processes related to mobility, flooding, and riparian wetland connectivity to determine the minimal space around rivers where development should not be allowed, thus allowing river processes to be restored.     

“Where nothing was before”: (re)producing population and place in Ghana's Volta River Project

Significant infrastructural projects, and especially large hydroelectric dams, were envisioned and deployed by postcolonial governments to promote particular visions of industrialization, agriculture, democracy, and modernity. Newly independent states sought to annihilate formerly so-called backward and primitive landscapes and populations alike, promising to re-create both places and people as rational, economically productive entities. In this article, we re-examine such narratives as they related to Ghana's Volta River Project (VRP). Relying on archival and media sources between the 1950s and 1960s, we interrogate the Ghanaian state's pursuit of the VRP from a perspective rooted firmly in cultural geography and pay careful attention to the issues of population displacement/resettlement and landscape reconfiguration that permeated all dimensions of the project. We analyze the ways in which Ghanaian leaders used the VRP to translate a particular suite of cultural, economic, and political values into material reality, utilizing the techniques of displacement and population resettlement in efforts to enroll Ghana into a modern, global, industrial economic system. As such, this article augments the body of literature examining the modernist and state-building aspects of the VRP as well as studies critiquing the various processes of development that have unfolded in West Africa since the mid-twentieth century.     

SEISMIC SAFETY OF AGED CONCRETE GRAVITY DAMS CONSIDERING FLUID-STRUCTURE INTERACTION

It is important to predict the behaviour of an aged concrete gravity dam during an earthquake and to assess its degraded capacity to withstand future earthquakes, so that remedial measures can be taken at the right time. The assessment of operating and ageing dams is more important, since the analyses procedures may become obsolete and state of the art may change since the time of construction. In this paper, an approach to include the time dependent degradation of concrete owing to environmental factors and mechanical loading in terms of isotropic damage index is presented. An effective numerical algorithm for seismic analysis of a concrete dam in the vicinity of an infinite reservoir with the application of damage mechanics considering fluid-structure interaction is presented. The performance of an aged dam with a known percentage of isotropic or orthotropic damage due to seismic excitation is studied.     

DAMS AND INDIGENOUS PEOPLES IN MALAYSIA: DEVELOPMENT,DISPLACEMENT AND RESETTLEMENT

Large dams have proliferated in Malaysia in recent decades. Constructed mainly to meet mounting domestic demand for water and energy, they have destroyed large tracts of species‐rich tropical rain forest and displaced many already poor and marginalized indigenous groups from their homes and ancestral lands without their consent. Evicted indigenes were promised a better life in resettlement villages, but for the most part this has not occurred. Invariably traumatized by resettlement and widely forced into cash‐based economies for which they were ill prepared, many resettled indigenes suffered from frayed social relationships, high rates of unemployment and enduring poverty, in large part because the authorities failed to internalize project costs. The consequences for indigenous groups of dam‐induced environmental change and development‐forced displacement and resettlement (DFDR) are explored through a critical reading of the literature on four large dams: Sungai Selangor, Babagon, Batang Ai and Bakun. More large dams are under construction and many others have been proposed, resulting in threats to the future well‐being of many indigenous communities. Generally speaking, the experiences of Malaysia's dam‐affected indigenes mirror those of other indigenous minorities in the greater Southeast Asian region.