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The last Leonardo : the secret lives of the world's most expensive painting
\"For two centuries, art dealers had searched in vain for the Holy Grail of art history: a portrait of Christ as the Salvator Mundi by Leonardo da Vinci. Many similar paintings of greatly varying quality had been executed by Leonardo's assistants in the early sixteenth century. But where was the original by the master himself? In November 2017, Christie's auction house announced they had it. But did they? [This book examines an] icon invested with the power to make or break the reputations of scholars, billionaires, kings, and sheikhs\"-- Provided by publisher.
BOOK
Pathways and pitfalls in extreme event attribution
The last few years have seen an explosion of interest in extreme event attribution, the science of estimating the influence of human activities or other factors on the probability and other characteristics of an observed extreme weather or climate event. This is driven by public interest, but also has practical applications in decision-making after the event and for raising awareness of current and future climate change impacts. The World Weather Attribution (WWA) collaboration has over the last 5 years developed a methodology to answer these questions in a scientifically rigorous way in the immediate wake of the event when the information is most in demand. This methodology has been developed in the practice of investigating the role of climate change in two dozen extreme events world-wide. In this paper, we highlight the lessons learned through this experience. The methodology itself is documented in a more extensive companion paper. It covers all steps in the attribution process: the event choice and definition, collecting and assessing observations and estimating probability and trends from these, climate model evaluation, estimating modelled hazard trends and their significance, synthesis of the attribution of the hazard, assessment of trends in vulnerability and exposure, and communication. Here, we discuss how each of these steps entails choices that may affect the results, the common problems that can occur and how robust conclusions can (or cannot) be derived from the analysis. Some of these developments also apply to other attribution methodologies and indeed to other problems in climate science.
Journal Article
Firms Talk, Suppliers Walk: Analyzing the Locus of Greenwashing in the Blame Game and Introducing 'Vicarious Greenwashing'
Greenwashing is a phenomenon that is linked to scandals that often occur at the supply-chain level. Nevertheless, research on this subject remains in its infancy; much more is needed to advance our understanding of stakeholders' reactions to greenwashing. We propose here a new typology of greenwashing, based on the locus of discrepancy, i.e. the point along the supply-chain where the discrepancy between 'responsible words' and 'irresponsible walks' occurs. With three experiments, we tested how the different forms of greenwashing affect stakeholders' reactions, from both ethical (blame attributions) and business (intention to invest) perspectives. We developed our hypotheses by building on attribution theory, which seeks to account for how observers construct perceptions about events. We had anticipated that the more internal, controllable and intentional the discrepancy is, the greater the blame attributed to a company is, and the lower the intention to invest will be. When greenwashing occurs at a company level (direct greenwashing), this results in a higher level of blame attribution, while the intention to invest falls. Indirect greenwashing refers to a misbehaviour perpetrated by a supplier who claims to be sustainable, and which results in a less negative impact on a supplied company. We also propose the vicarious greenwashing, which occurs when the behaviour of a supplier is in breach of a company's claims of sustainability. This type of greenwashing is nevertheless detrimental to investment. The findings here advance our understanding of how greenwashing shapes stakeholders' reactions, and highlight the need for the careful management of the supply-chain.
Journal Article
Attribution of Cyber Operations: Technical, Legal and Political Perspectives
The article deals with the issue of attribution of cyber operations from the technical, legal and political point of view. The first part is devoted to the possibilities of technical attribution, which have increased significantly in connection with the development of technology and the sharing of information about attackers. The second part discusses the issue of legal attribution for purposes of state responsibility under international law, with attention also given to the burden of proof and standard of proof. The third part briefly summarizes the problem of political attribution and the possibility of establishing an international attribution mechanism.
Journal Article
The Relation of Moral Emotion Attributions to Prosocial and Antisocial Behavior: A Meta-Analysis
This meta-analytic review of 42 studies covering 8,009 participants (ages 4–20) examines the relation of moral emotion attributions to prosocial and antisocial behavior. A significant association is found between moral emotion attributions and prosocial and antisocial behaviors (d = .26, 95% CI [.15, .38]; d = .39, 95% CI [.29, .49]). Effect sizes differ considerably across studies and this heterogeneity is attributed to moderator variables. Specifically, effect sizes for predicted antisocial behavior are larger for self-attributed moral emotions than for emotions attributed to hypothetical story characters. Effect sizes for prosocial and antisocial behaviors are associated with several other study characteristics. Results are discussed with respect to the potential significance of moral emotion attributions for the social behavior of children and adolescents.
Journal Article