How difficult is it to recover from dangerous levels of global warming?

Climate models provide compelling evidence that if greenhouse gas emissions continue at present rates, then key global temperature thresholds (such as the European Union limit of two degrees of warming since pre-industrial times) are very likely to be crossed in the next few decades. However, there is relatively little attention paid to whether, should a dangerous temperature level be exceeded, it is feasible for the global temperature to then return to safer levels in a usefully short time. We focus on the timescales needed to reduce atmospheric greenhouse gases and associated temperatures back below potentially dangerous thresholds, using a state-of-the-art general circulation model. This analysis is extended with a simple climate model to provide uncertainty bounds. We find that even for very large reductions in emissions, temperature reduction is likely to occur at a low rate. Policy-makers need to consider such very long recovery timescales implicit in the Earth system when formulating future emission pathways that have the potential to 'overshoot' particular atmospheric concentrations of greenhouse gases and, more importantly, related temperature levels that might be considered dangerous.

Are dangerous jobs paid better? European evidence

This article tests whether workers are indifferent between risky and safe jobs provided that, in labour market equilibrium, wages should serve as a utility equalizing device. Workers’ preferences are elicited through a partial measure of overall job satisfaction: satisfaction with job-related risk. Given that selectivity turns out to be important, we use selectivity corrected models. Results show that wage differentials do not exclusively compensate workers for being in dangerous jobs. However, as job characteristics are substitutable in workers’ utility, they could feel satisfied, even if they were not fully compensated financially for working in dangerous jobs.

Dead, done for and dangerous: teaching editing students what not to do

The most difficult aspect of teaching editing at a university tutorial is imparting to students a sensitivity to the appropriate relationship between the editor and author and, more particularly, between the editor and the author's work. Students are tempted to see themselves as critics or assessors of the author's work rather than assistants in the writing process. This paper discusses where teaching editing is difficult in a classroom, arguing that such difficulty is a symptom of both problems experienced in the editing profession and limitations of university teaching.

Incorporation of a hybrid cooling system in water cooled power stations to reduce water and energy consumptions

Water shortage is a major problem facing the power industry in many nations around the world. The largest consumer of water in most power plants is the wet cooling tower. To assist water and energy saving for thermal power stations using conventional evaporative wet cooling towers, a hybrid cooling system is proposed in this paper. The hybrid cooling system may consists of all or some of an air pre-cooler, heat pump, heat exchangers, and adsorption chillers together with the existing cooling tower. The hybrid cooling system described in the paper, consisting of a metal hydride heat pump operating in conjunction with the existing wet cooling tower, is capable of achieving water saving by reducing the temperature of warm water entering the cooling tower. Cooler inlet water temperatures effectively reduce the cooling load on existing towers. This will ultimately reduce the amount of water lost to the air by evaporation whilst still achieving the same cooling output. At the same time, the low grade waste energy upgraded by the metal hydride heat pump, in the process of cooling the water, can be used to replace the bleed of steam for the lower stage feed heaters which will increase overall cycle efficiency.

Reintegration services for long-term dangerous offenders : a case study and discussion

Successfully reintegrating long-term prisoners back into the community often presents significant challenges for service providers. Ex-prisoners typically experience high levels of social stigma; present with multiple needs; and can struggle to find meaningful employment, stable accommodation, and to maintain supportive relationships. There have, however, been relatively few published evaluations of the outcomes achieved by postrelease services on managing the risk of reoffending and, as such, it is difficult for service providers to meet these multiple and complex levels of need in ways that might be considered to be evidence based. In this article we describe a specialized prerelease support, reentry, and reintegration service that is offered to long-term prisoners, many of whom have been legally labelled as ‘‘dangerous.’’ The current model of service delivery is reviewed and discussed in the context of current theories of offender rehabilitation and reintegration. These are then used to discuss the way in which services for this group of offenders might best be conceptualized.

Cultural politics in the English classroom : textually dangerous territory?

How might one approach cultural politics in the English classroom? What might the role of the class text be in these discussions? This article is a snapshot of the author's journey from a pre-service English teacher to her most recent experiences of English teaching. Her pre- service pedagogy indicated a 'minimization' of the role of the text in unpacking cultural politics; the text itself was overshadowed by the important points the teacher was making about critiquing the way the world is socially, culturally and politically organised. In her beginning teaching year, the author was in a remote rural school where she encountered attitudes to hegemonic masculinity and heterosexuality which she felt she did not deal appropriately with. She now believes that more emphasis on how the features of the text itself work to create meaning and construct identities is needed. She recognises the importance of close textual analysis as a way toward engaging in culturally political conversations about constructions of gender and sexuality in media and non-media texts. If she were to have her beginning teaching years over again, she would probably collate a series of contrasting representations of masculinity and femininity from a variety of sources, including popular culture. She would then develop activities based around undertaking textual analysis of the constructions of gender and sexuality, and ask students to identify the different elements in the texts that create meaning, and compare similarities and differences between texts.

A research on the construction material export and energy consumptions using the gravity model

This paper applies a gravity model to estimate the relationships between energy consumptions and many kinds of construction material export over the period 1992-2009 in China. The empirical result shows that energy consumptions have a significant and positive influence on the construction material export of China.

Beautiful, unethical, dangerous : screening surveillance and maintaining insecurities

Many films critiquing the perpetuation of surveillance in contemporary society simultaneously highlight the apparently essential role(s) it plays in resolving social problems – problems that were often created by the technologies themselves. Such films construct surveillancescapes of various kinds – from the physical, to the psychological, to the virtual – and hold considerable importance in mediating understandings of technology, society and humanity. In this paper, we employ content and textual analyses of various films to reveal a rich ideological fabric that engages with vexed questions of identity, agency and ‘reality.’ We analyse an array of filmic representations of surveillance, arguing that significant contradictions lie at the heart of much mainstream cinema, and evaluating the medium’s potential for ideological subversion. An examination of the growing trend by filmmakers to either focus explicitly on surveillance or provide brief, naturalised portrayals of new media use for surveillance purposes highlights the crucial role of film in the development of hegemonic societal power structures. Through this process, we ask the question: who is actually watching whom?