Continental Upper Triassic Yanchang “black shales” in the southeastern Ordos Basin have been proven to be unconventional gas reservoirs. Organic-matter-lean and organic-matter-rich argillaceous mudstones form reservoirs that were deposited in a deeper water lacustrine setting during lake highstands. In the stratified lake, the bottom waters were dysaerobic to anoxic. This low-energy and low-oxygen lake-bottom setting allowed types II and III organic matter to accumulate. Interbedded with the argillaceous mudstones are argillaceous arkosic siltstones deposited by gravity-flow processes. Rock samples from the (...) Yanchang Chang 7–9 members are very immature mineralogically. Mineral grains are predominantly composed of relatively equal portions of quartz and feldspar. The high clay-mineral content, generally greater than 40%, has promoted extensive compaction of the sediments, permitting the ductile material to deform and occlude interparticle pores. Furthermore, this high clay-mineral content does not favor hydraulic fracturing of the mudstone reservoir. The pore network within the mudstones is dominated by intraparticle pores and a lesser abundance of organic-matter pores. Interparticle pores are rare. The mean Gas Research Institute crushed-rock porosity is 4.2%. Because the pore network is dominated by poorly connected intraparticle pores, permeability is very low. The dominance of intraparticle pores creates a very poor correlation between GRI porosity and GRI permeability. Several methods of porosity analysis were conducted on each samples, and the results were compared. There is no significant correlation between the three methods, implying that each method measures different pore sizes or types. There is also no relationship between the porosity and permeability and total organic carbon. Much of the mature organic matter is nonporous, suggesting that it is of type III. Most of the organic-matter pores are in migrated solid bitumen. Overall, the samples analyzed have low porosity and permeability for mudrocks. (shrink)

McCarthy, Homan, and Rozier’s article seeks to bridge a gap between theological and secular bioethics. It should be noted that the “theological” emphasis in the a...

Engineering the Climate: The Ethics of Solar Radiation Management is a wide-ranging and expert analysis of the ethics of the intentional management of solar radiation. This book will be a useful tool for policy-makers, a provocation for ethicists, and an eye-opening analysis for both the scientist and the general reader with interest in climate change.

This paper develops a novel, neo-republican account of just state surveillance in the information age. The goal of state surveillance should be to avoid and prevent domination, both public and private. In light of that conception of justice, the paper makes three substantive points. First, it argues that modern state surveillance based upon information technology and predicated upon a close partnership with the tech sector gives the state significant power and represents a serious potential source of domination. Second, it argues (...) that, nonetheless, state surveillance can serve legitimate republican ends and so unilateral and private technological attempts to block it may be wrongful. Third, it argues that, despite the serious normative failings of current institutions, state surveillance can be justly regulated and made accountable through a legal liability regime that incentivizes tech company intermediaries to ally with civil society groups in order to safeguard the privacy rights of potential subjects of state surveillance. (shrink)

Since cyberattacks are nonphysical, standard theories of casus belli — which typically rely on the violent and forceful nature of military means — appear inapplicable. Yet, some theorists have argued that cyberattacks nonetheless can constitute just causes for war — generating a unilateral right to defensive military action — when they cause significant physical damage through the disruption of the target's computer systems. I show that this view suffers from a serious drawback: it is too permissive concerning the types of (...) actions that generate casus belli since many essentially peaceful and non-violent mechanisms can nonetheless cause physical damage. I resolve this difficulty by developing a sovereignty-based account of casus belli and applying it to cyberwarfare. I argue that legitimate states have a constrained right to unilaterally respond with military force to unfriendly actions that bypass or overwhelm the political deliberations of the target state in order to force a change in behaviour contrary to the determinations of the people of the target state. This new account of casus belli avoids the problems of the consequence-based view by plausibly restricting the types of unfriendly action that give rise to casus belli and yet offers an attractive explanation for why some cyberattacks nonetheless do generate a potential right to a unilateral defensive response. (shrink)

Torbjörn Tännsjö has argued that the practice of palliative, or terminal, sedation can be distinguished from the practice of euthanasia in a morally relevant way. He seeks to develop a coherent conceptual model for those who accept the sanctity-of-life doctrine, affirm the ethical permissibility of palliative/terminal sedation, and reject various forms of euthanasia. The author argues that Tännsjö has not sufficiently distinguished the practices of palliative/terminal sedation and euthanasia in a morally relevant way for those who accept sanctity-of-life values in (...) end-of-life health care. His argument is a philosophical critique of the soundness of Tännsjö’s conceptual model. With respect to moral theology, the author claims that, in Tännsjö’s attempt to make his case, he uses the wrong conceptual tools, and the tools he does use, he uses wrongly. National Catholic Bioethics Quarterly 15.2 : 287–301. (shrink)

This paper argues that it is permissible for computer scientists and engineers—working with advanced militaries that are making good faith efforts to follow the laws of war—to engage in the research and development of lethal autonomous weapons systems. Research and development into a new weapons system is permissible if and only if the new weapons system can plausibly generate a superior risk profile for all morally relevant classes and it is not intrinsically wrong. The paper then suggests that these conditions (...) are satisfied by at least some potential LAWS development programs. More specifically, since LAWS will lead to greater force protection, warfighters are free to become more risk-acceptant in protecting civilian lives and property. Further, various malicious motivations that lead to war crimes will not apply to LAWS or will apply to no greater extent than with human warfighters. Finally, intrinsic objections—such as the claims that LAWS violate human dignity or that it creates ‘responsibility gaps’—are rejected on the basis that they rely upon implausibly idealized and atomized understandings of human decision-making in combat. (shrink)

Laura Valentini’s Justice in a Globalized World presents, with admirable clarity, a new, hybrid conception of global justice that builds on insights from both cosmopolitans and statists, especially their relational variants. Relational cosmopolitans generally argue that substantial economic cooperation and interdependence (i.e., the relevant economic relations) trigger robust obligations of distributive justice. They then argue that, as a matter of fact, these relations obtain globally in virtue of intensifying global trade, capital flows, and labor migration. Thus, relational cosmopolitans conclude that (...) obligations of distributive justice directly apply to the global economic order. Relational statists, by contrast, argue that obligations of distributive justice are trigged by coercive, political relations. Furthermore, these coercive relations only obtain—and can only be justified—within a state. As a consequence, the global order is a ‘secondary site’ of justice that ought to be con. (shrink)

This essay highlights an argument for the moral impermissibility of physician-assisted death based on the prohibition of killing innocents that unfolds in four phases. First, I identify the operative moral principle and then develop a moral argument based upon it. Second, I raise challenges to such an argument designed to mitigate the force of the conclusion. Third, I sketch out a potential defense of the argument in light of these counter-responses for those who want to maintain moral opposition to physician-assisted (...) death based upon the prohibition of killing innocents. Finally, I conclude with a brief postscript that highlights the limits of the philosophical approach taken in this essay in conversation with the role of moral psychology in moral judgment. (shrink)

Questions about dirty hands have often focused on legitimate, secure leaders deciding whether to violate important deontological principles or the rules of interpersonal morality. The purpose of this paper is to show that revolutionaries have dirty hands; revolutionaries do wrong by engaging in unilateral usurpation of the existing system with the hope that latter benefits will justify their actions. Yet, once the revolution securely generates improvements for the common good, the initial usurpation becomes increasingly irrelevant to judgments of the new (...) government’s legitimacy. The paper argues that only retroactive justification—where later success forces opponents and advocates to reinterpret the wrongness of the initial action—can fully capture the complex moral dynamics of revolutions. (shrink)