Experimental investigation of carbon dioxide trapping due to capillary retention in saline aquifers

Capillary trapping is a physical mechanism by which carbon dioxide (CO₂) is naturally immobilized in the pore spaces of aquifer rocks during geologic carbon sequestration operations, and thus a key aspect of estimating geologic storage potential. Here, we studied capillary trapping of supercritical carbon dioxide (scCO₂), and the effect of initial scCO₂ saturation and flow rate on the storage/trapping potential of Berea sandstone. We performed two‐phase, scCO₂‐brine displacements in two samples, each subject to four sequential drainage–imbibition core‐flooding cycles to quantify end‐point saturations of scCO₂ with the aid of micro‐ and macro‐computed tomography imaging. From these experiments, we found that between 51% and 75% of the initial CO₂ injected can be left behind after the brine injection. We also observed that the initial scCO₂ saturation influenced the residual scCO₂ saturation to a greater extent than the rate of brine injection under the experimental conditions examined. In spite of differences in the experimental conditions tested, as well as those reported in the literature, initial and residual saturations were found to follow a consistent relationship.     

Home divided,home reconstructed: children in rural–urban migration in contemporary China

This article is centred on the geographies of Chinese children in contemporary China – an area which has been problematically overlooked in geographical literature on childhood. In employing unique mobile research methods by tracking migrant children through the migration cycle, the author conducted an extensive ethnographic study of rural migrant children aged 8–17 in China. The article explores rural children's everyday lived experience of migration and how migrant children negotiate and articulate home and belonging while on the move. The study demonstrates the dynamic environment that migrant children inhabit, the fluid, contextual and mobile nature of their life in rural migrant households, their migrancy and their active involvement in homemaking.     

Reaching across: institutional barriers to cross‐ethnic parties in post‐conflict societies and the case of Northern Ireland

This paper investigates the paradox in post‐conflict societies of continued marginality of cross‐ethnic parties despite significant convergence in public attitudes and identities. In so doing, it examines the argument that parties that attempt to reach across the divide are constrained by consocational institutions designed to accommodate rival identities in such environments. The paper explores this puzzle in the context of Northern Ireland, drawing upon qualitative evidence from elite interviews and focus groups collected in 2012 and 2013. It concludes that cross‐community parties operating in the region do encounter formal institutional barriers, but that such barriers only partially explain the phenomenon and an interplay between formal and informal constraints underlies their position of relatively limited electoral success.     

Geography and Global Change Science: Relationships Necessary,Absent, and Possible

Initiated by geoscientists, the growing debate about the Anthropocene, ‘planetary boundaries’ and global ‘tipping points’ is a significant opportunity for geographers to reconfigure two things: one is the internal relationships among their discipline's many and varied perspectives (topical, philosophical, and methodological) on the real; the other the discipline's actual and perceived contributions to important issues in the wider society. Yet, without concerted effort and struggle, the opportunity is likely to be used in a ‘safe’ and rather predictable way by only a sub‐set of human‐environment geographers. The socio‐environmental challenges of a post‐Holocene world invite old narratives about Geography's holistic intellectual contributions to be reprised in the present. These narratives speak well to many geoscientists, social scientists, and decision‐makers outside Geography. However, they risk perpetuating an emaciated conception of reality wherein Earth systems and social systems are seen as knowable and manageable if the ‘right’ ensemble of expertise is achieved. I argue that we need to get out from under the shadow of these long‐standing narratives. Using suggestive examples, I make the case for forms of inquiry across the human‐physical ‘divide’ that eschew ontological monism and that serve to reveal the many legitimate cognitive, moral, and aesthetic framings of Earth present and future. Geography is unusual in that the potential for these forms of inquiry to become normalised is high compared with other subjects. This potential will only be taken advantage of if certain human‐environment geographers unaccustomed to engaging the world of geoscience and environmental policy change their modus operandi.     

The case of Asialink’s arts residency program: towards a critical cosmopolitan approach to cultural diplomacy

This paper explores the ways in which one of Australia’s cultural diplomacy initiatives aimed at bringing Australia closer to Asia – the Asialink Arts Residency Program – may provide valuable insights for reimagining cultural diplomacy with a revised understanding of the national interest that reflects the increasingly transnational realities of the contemporary world. Drawing on extensive data gained from interviews and an online survey, the author found that program participants are engaging in exceptionally complex and at times unintended activities, and that policy concerns, such as positive image projection abroad, are rarely high on the residents’ list of priorities. However, these experiences are of particular value for the national interest, in ways not yet formulated by or included in existing cultural diplomacy discourses. With the findings in mind, the author takes a critical cosmopolitan approach to reconceptualising cultural diplomacy.     

Neoliberalism,the Developmental State and Civil Society in Korea

Following the Asian economic crisis of the late 1990s, some scholars predicted that the introduction of neoliberal ideas and policies would result in the definitive passing of the Korean developmental state. Despite these predictions, Korean state elites have retained their influential position as economic managers by, for instance, practicing a revised form of industrial policy. Neoliberal reform has, however, had significant social implications. Rather than neoliberalism acting as a democratising force that curtails the power of the state, this article illustrates that the Korean state has used the reform agenda to justify an expansion of its powers. The state presented itself as an agent capable of resolving long-standing economic problems, and of defending law and order. By doing so, the state reduced the political space available to non-state actors. The article concludes that for some states, neoliberalism is a means of retaining economic and political influence, and that former developmental states may be particularly adept at co-opting elements of civil society into governing alliances.     

Italy and Australia: a relationship made and unmade by immigration

Australia's new-found post-colonial ‘independence’ in 1901 initially required it to continue to hold on to the apron strings of its colonial master. After World War II, these needs changed, as did the geopolitical power of the leading nations. For Australia, there would be the need to secure its borders, build its labour power, find security arrangements, and adhere to a cold war framework in its geographical region. The USA and the Asian region fell into Australia's sphere of interest. Italy, on the other hand, was a nation of contrasting interests and perspectives. Besides being located in Europe, the post-war period defined Italy by its participation in the concept of a European community and an entirely different set of allies, concerns and trajectories, which made it position itself in a different orbit than that of Australia. Australia's changing economic and social needs required a new and vast migration program in 1947, which would change the dynamics of its relationships. Enter Italy. The two countries now had common destinies in relation to migration—Australia needed people to help build its country, whilst Italy encouraged its impoverished rural population to emigrate to this distant and foreign land. A relationship was born.