Can argillaceous formations isolate nuclear waste? Insights from isotopic,noble gas,and geochemical profiles

There is considerable interest in the use of thick argillaceous geologic formations to contain nuclear waste. Here, we show that diffusion can be the controlling transport process in these formations and diffusional time scales for δ¹⁸O and δ²H in water, dissolved He, and Cl transport in shale‐dominated aquitards are typically over 10⁶ years, well exceeding the regulatory requirements for isolation in most countries. Our scientific understanding of diffusive solute transport processes through argillaceous formations would benefit from the application of additional isotopic tracers (e.g., using new ⁴He sampling technology), multidimensional diffusive‐dispersive modeling of groundwater flow and diffusive‐dispersive solute transport over long geologic time scales, and an improved understanding of spatial heterogeneity as well as time‐dependent changes in the subsurface conditions and properties of argillaceous formations in response to events such as glaciation. Based on our current isotopic and geochemical understanding of transport, we argue that argillaceous formations can provide favorable long‐term conditions for isolating nuclear wastes.     

The Use of Multiple Correspondence Analysis (MCA) in Taphonomy: The Case of Middle Helladic Asine,Greece

The goal of this paper is to investigate whether multiple correspondence analysis (MCA), a multivariate statistical technique, is a useful dimensionality‐reduction tool in zooarchaeological and taphonomic studies. For this purpose, the focus is to detect and discuss traces of waste management. Animal bones from waste‐related contexts at the Bronze Age site Asine, Greece, are investigated. The data consist of bone fragments dating to the Middle Helladic from this site. Unidentified fragments were categorised in size classes, where possible. Information on taxa, skeletal parts and the presence or absence of several taphonomic markers is included in the data set. The MCA reveals several correlations of zooarchaeological interest. For example, the association between indeterminate fragments and calcined bone points to issues concerning identification and preservation. Floors are characterised by weathered long‐bone fragments from medium‐sized mammals. Additionally, the results of MCA indicate that the material might have suffered from density‐mediated attrition, based on the abundance of axial fragments, which did not differ between different contexts and taxa. The results show that MCA can be used to detect zooarchaeological and taphonomic patterns. This multivariate technique is useful when investigating large data sets, as is often the case with large zooarchaeological assemblages. Copyright © 2016 John Wiley & Sons, Ltd.     

Environmental Degradation of Russian Coastal Regions: Exploring the Gulf of Finland

An American geographer and Russian ecologist discuss current and prospective environmental hazards precipitated by large-scale infrastructure projects on Russia's southern coast of the Gulf of Finland. The region, investigated by both authors during the course of regular field research from 1999 to 2009, is one of the best environmentally preserved coastlines of the Baltic Sea with abundant potential greenfield sites, largely due to its closed-border-zone status during the Soviet period. A favorable location for trade also places the region under intense development pressure. The authors devote particular attention to two major developments, a multifunctional port complex (which inter alia serves as a major pipeline terminus and oil export port) and expansion of an existing nuclear power plant. Based on extensive personal observations and government documents, they analyze the emerging environmental threat posed by these initiatives as well as the challenging political environment that discourages public participation and local involvement in spatial planning.     

Mapping international flows of electronic waste

In this paper, we map the international trade in electronic waste (e‐waste). We quantify the directions and magnitude of this trade at the global scale and examine the utility of the pollution haven hypothesis for explaining the observed trade patterns. Our results demonstrate four key findings: the international trade in e‐waste is a more complex story than being one about ‘rich’ countries dumping waste in ‘poor’ countries; the trade in e‐waste is highly regionalized, with intra‐regional trade accounting for most of the total trade flows; the pollution haven hypothesis is an important, but partial, explanation of observed trade patterns; and there is a need to conceptualize the trade and traffic of e‐waste as open ended and contingent processes facilitated by situated practices of wasting and valuing that rely on geographic difference and mobility for the exchanges between the domains of waste and value to occur.     

商代城邑废物处理方式试析

人口众多的商代城邑中产生了大量的生产生活废物,危害商人的生活,商人不得不采取种种方法进行废物处理。本文拟以考古资料为基础,综合研究商人对生产生活中的固体废物和污水的处理方式,以期完善学术界对商代社会生活的研究。     

Export of environmental technologies by publicly owned companies: approaches,drivers and obstacles among Swedish municipal companies

This article focuses on the export of environmental technology by publicly owned companies. The export of such technologies has the potential to contribute to economic competitiveness and environmental sustainability. However, research on this emerging topic has so far largely focused on privately owned SMEs compared to publicly owned companies. Using interviews with 12 Swedish municipally owned companies which develop such systems and a survey with 36 others, we analyse their approaches, drivers for and obstacles to export. These companies use a combination of different approaches such as subsidiaries, independent projects, licensing and private-public partnerships to engage in export. However, in contrast to private companies which are often driven by internal factors such as extra sales, these municipally owned companies are largely motivated by external factors such as customer requests and opportunities to contribute to environmental sustainability. Furthermore, their main export barriers relate to differences between the business culture and political systems in their home and target markets. Their export experiences are influenced by their municipal ownership, the types of technologies they develop and the institutional contexts within which they operate. This study reveals an actor type struggling to find a balance between domestic obligations and commercialization in international markets.     

Countermovement,Neoliberal Platoon,or Re‐Gifting Depot? Understanding Decommodification in US Food Banks

In this paper, I explore the decommodification that takes place in US food banks. I argue that food banks are neither Polanyian countermovements re‐embedding the market in society nor tiny platoons of neoliberalism that advance market relations and state withdrawal. Rather, food banks are best understood as re‐gifting depots that are part of the capital accumulation process. Recent scholarship on primitive accumulation, the disarticulations approach, and waste suggests that the devaluation of food products and the exclusion of human labor are everyday elements of capitalism. I conclude by examining the potential for progressive politics in US food banking.     

Infrastructural Discontent in the Sanitary City: Waste,Revolt, and Repression in Cairo

In this article, I examine the relationship between waste, revolt, and repression in Cairo's sanitation system from the early 20^th century to the present. I coin the term infrastructural discontent in the sanitary city to describe how discontent slowly accretes around Cairo's sanitation system and becomes a powerful force in the city's politics—a force that can be mobilised for popular revolt and state repression. I detail three expressions of infrastructural discontent in Cairo's sanitation system, paying careful attention to the deeply related mundane and spectacular productions of these expressions. Tracing the formation of infrastructural discontent in the sanitary city, I show how resistance and repression are produced and contested in material infrastructural relations which contain the accretions of long‐standing struggles over colonialism, development, and uneven urbanisation.     

殡葬改革:土地、木材和金钱浪费及其讨论

殡葬改革是我国政府持续推行的一项文化和社会改革政策,旨在改善民生,而由此引发的争议则与不同地区的具体实施方式有关,并涉及对传统丧葬文化和习俗的多元认知。具体到土葬还是火化的话题而言,争议集中在土葬浪费土地资源、森林木材资源,以及传统仪式的铺张浪费等方面,有待于学术界进一步的讨论和厘清。与传统殡葬有关的土地占用、木材损耗、金钱浪费等现象,并非不可改进,也并非与当今社会发展难以兼顾。或许,在尊重传统文化认同的基础上,区别对待殡葬改革进程中的城乡差异,有助于多元化地解决这一问题。     

To live among the stars: artificial environments in the early space age

Startled by NASA’s decision to let orbiting astronauts collect their own feces in a bag for medical experiments, a pair of sanitary engineers at Berkeley designed an algae-based bio-regenerative system to recycle oxygen, water, and even nutrients. This article explains the technological choice facing the emerging space program between the infamous ‘fecal-bag’ and a now-forgotten alternative, the ‘Algatron’, in the mid-1960s. The article situates the case of the Algatron at the intersection of the history of the space program and the history of biology; it uses the case of the Algatron to expose the different meanings of ‘shit’ as an object of scientific, medical, and engineering study. For nearly a decade after Sputnik, engineers worked under the assumption that human waste was part of a new space ecology, but by the time Neil Armstrong landed on the moon, human excrement had become understood solely as a diseased and disposable medical object to be contained and preserved in a bag. The ecological system was rejected in favor of a medical device and served to elevate Man above Nature in contrast to placing people as but one component in a biospheric system.