Online research in philosophy

Concerns about the risks of unmitigated greenhouse gas emissions are growing. At the same time, confidence that international policy agreements will succeed in considerably lowering anthropogenic greenhouse gas emissions is declining. Perhaps as a result, various geoengineering solutions are gaining attention and credibility as a way to manage climate change. Serious consideration is currently being given to proposals to cool the planet through solar-radiation management. Here we analyze how the unique and nontrivial risks of geoengineering strategies pose fundamental questions at (...) the interface between science and ethics. To illustrate the importance of integrated ethical and scientific analysis, we define key open questions and outline a coupled scientific-ethical research agenda to analyze solar-radiation management geoengineering proposals. We identify nine key fields of coupled research including whether solar-radiation management can be tested, how quickly learning could occur, normative decisions embedded in how different climate trajectories are valued, and justice issues regarding distribution of the harms and benefits of geoengineering. To ensure that ethical analyses are coupled with scientific analyses of this form of geoengineering, we advocate that funding agencies recognize the essential nature of this coupled research by establishing an Ethical, Legal, and Social Implications program for solar-radiation management. (shrink)

The thesis that numbers are ratios of quantities has recently been advanced by a number of philosophers. While adequate as a definition of the natural numbers, it is not clear that this view suffices for our understanding of the reals. These require continuous quantity and relative to any such quantity an infinite number of additive relations exist. Hence, for any two magnitudes of a continuous quantity there exists no unique ratio. This problem is overcome by defining ratios, and hence real (...) numbers, as binary relations between infinite standard sequences. This definition leads smoothly into a new definition of measurement consonant with the traditional view of measurement as the discovery or estimation of numerical relations. The traditional view is further strengthened by allowing that the additive relations internal to a quantity are distinct from relations observed in the behaviour of objects manifesting quantities. In this way the traditional theory can accommodate the theory of conjoint measurement. This is worth doing because the traditional theory has one great strength lacked by its rivals: measurement statements and quantitative laws are able to be understood literally. 1 This paper was completed in 1990-1. while the author was a visiting scholar at the Irvine Research Unit in Mathematical Behavioral Sciences. University of California. Irvine. The author wishes to thank the Director. Professor R. D. Luce, for the generous provision of space and facilities within the Unit and for his critical comments upon some of the ideas expressed herein: Professor L. Narens. for his trenchant criticisms: and the University of Sydney, for granting Special Study Leave and financial assistance to make the visit possible. (shrink)

A sustained challenge to the view that artworks are physical objects relates to the alleged inability of physical objects to possess representational properties, which some artworks clearly do possess. I argue that the challenge is subject to confusions about representational properties and aesthetic experience. I show that a challenge to artwork-object identity put forward by Danto is vulnerable to a similar criticism. I conclude by noting that the identity of artworks and physical objects is consistent with the insight that attending (...) exclusively to the object’s individual physical properties may prevent us from grasping the nature of the work.Contre l’opinion voulant que les œuvres d’art soient des objets physiques, d’aucunsfont régulièrement valoir la présumée incapacité des objets physiques à possedér des propriétés représentationnelles, propriétés que certaines œuvres d’art possèdent a l’evidence. Je fais valoir que cette remise en question est sujette à des confusions à propos des propriétés représentationnelles et de l’experience esthétique. Je montre que de même, la remise en question par Danto de l’identité œuvre d’art-objet prête le flanc à une critique similaire. Je conelus pour finir que l’identité entre œuvres d’art et objets physiques est compatible avec l’intuition voulant que prêter attention exelusivement aux propriétés physiques d’un certain objet peut nous empêcher de saisir la nature de l’œuvre. (shrink)