Ambitious deep energy retrofits of buildings to accelerate the 1.5°C energy transition in Canada

Scientists advise limiting global warming to 1.5°C with substantial actions by 2030. Our viewpoint argues that climate response strategies in Canada have underemphasized and underestimated the potential contribution deep energy retrofits can make to greenhouse gas (GHG) emissions reductions, leading to inadequate responses in the building sector, and that Canada can (and should) be ambitious with building retrofits over the next decade. GHG savings from building retrofits can be realized more quickly than GHG reductions from other sectors, and either deliver net cost savings or are cost‐effective when compared to other mitigation measures. Retrofits can also provide social and economic benefits, such as improved health and comfort, and lower energy costs. This paper reviews energy use and building retrofits in Canada and argues the following should be implemented: (1) focus innovation on deep energy retrofit processes, not singular retrofit actions; (2) maximize both social and environmental benefits; (3) improve data gathering and availability for analysis and delivery; (4) innovate for a process of decisions and to avoid “dropouts” during the retrofit process; and (5) focus innovation on business models that maximize benefits.     

Principled pragmatism in climate policy? The EU and changing practices of climate justice

Climate change constitutes one of the most pressing political problems of our time and has profound implications for global justice. However, despite the recent progress of the international negotiations embodied in the Paris Agreement, most scientists and activists agree that the adopted measures are not adequate or ‘just’ considering the magnitude of the problem. Thus, there is a pressing need for political forerunners that could push the regime towards a more just handling of the problem. The European Union for most of the time has presented itself as a strong advocate for progressive climate action and has been called a climate vanguard or ‘green normative power’. This paper critically assesses the EU's role concerning climate change from a perspective of global political justice, which builds on a tripartite theoretical conception, consisting of ‘non-domination’, ‘impartiality’ and ‘mutual recognition’. It inquires to which conceptions of justice the EU's climate strategy and approach to the international negotiations have corresponded, how and why changes have come about, and whether the EU was able to influence the international regime. The paper finds that while the EU started out from a focus on political measures linked to impartiality, after the failed negotiations in Copenhagen in 2009 it has become more open towards policies and instruments in line with mutual recognition and non-domination. Thus, the emphasis moved away from top-down, legally binding measures, towards voluntary bottom-up procedures, a recognition of difference and diplomatic outreach activities. While this shift was necessary to reinstate the EU's influence and secure the Paris Agreement, it could hamper the quest for robust climate abatement measures and global climate justice.     

Reflections into Ptolemaic glass: Colorless,white, blue,and green inlays from the workshop of Tebtynis

Inlays range among the most aesthetically pleasing and technically challenging glasses produced in the Ptolemaic period. Despite the central role of this phase in the history of glass technology, little is known about the recipes and the technological knowledge of the Egyptian artisans. This paper will thus focus on the study of the materials from the secondary workshop of Tebtynis (Fayum oasis, Egypt). We report the first multi-methodological study comprising textural, chemical, and mineralogical analyses (optical microscopy, scanning electron microscopy coupled with energy-dispersive system, electron probe microanalysis, and μ-Raman spectroscopy) on a set of 81 colorless, white, blue, and green samples carefully selected among the 800+ glasses from the craft area now stored at the Museo Egizio, Turin (Italy). Our study offers the biggest compositional database of well-dated Ptolemaic glasses currently available in the literature, highlighting some interesting novelties regarding the silica and alkali sources, and the coloring and opacifying techniques employed. The results suggest a specialized craft of traditional origin, but open to innovation and experimentation, as expected from transitional phases.     

Static penetration assessment of stone weapon tip geometry metrics and comparison of static and dynamic penetration depths

Many factors governed the penetration efficacy of prehistoric projectile weaponry. Archaeologists broadly focus their efforts on understanding the effect of stone weapon tips because these specimens are often the only part of the weapon system that survives in the archaeological record. The tip cross-sectional area (TCSA) and perimeter (TCSP) of stone weapon tips have been shown to correlate with target penetration depth. Here, using results from both static and dynamic penetration testing, we compare TCSA and TCSP against other tip geometry metrics: lateral surface area (LSA) and volume (V). Our analyses broadly show that using a single-point geometry metric evaluated at multiple locations along the length of the point, or using multiple geometry metrics evaluated at a single location, better predicts required energy than using a single-point geometry metric evaluated at a single location. Our results also show that in the case where a single geometry metric evaluated at multiple locations is used LSA provided the most robust prediction models. Finally, our results show that for the case where all geometry metrics evaluated at a single location are used the location that provides the most robust prediction model is dependent on how far the point penetrated the target.     

The religious self-alteration of Shem Irofa'alu during the anti-colonial Maasina Rule in Solomon Islands (1944–1953)

This essay explores the post-World War Two anti-colonial Maasina Rule in north Malaita, Solomon Islands, to show how a church leader Shem Irofa'alu decided to establish a religious movement independent of the state and the traditional evangelical church. Irofa'alu's movement indexes an important moment of culture change towards increasing enthusiasm for the often-overlooked Christianity-based forms of sovereignty in the region. It highlights that Maasina Rule was not only a powerful rupture in social processes, but also sharpened the growing division between state and church. Irofa'alu's role in Maasina Rule shows that his influence peaked between 1948 and 1950 and then went into rapid decline. This change in fortune coincided with a critical turning point in the colonial government's attempts to end the movement through appeasement. No longer the head of the evangelical church in Malu'u sub-district and frustrated about the mother church's governance, Irofa'alu retreated to his home area and set about establishing a new church, Boboa (‘Foundation’), his first attempt at organizing a self-governing assembly before introducing Jehovah's Witnesses in north Malaita. In later years, Irofa'alu became a prophet-exemplar for new generations of religious leaders trying to establish Malaitan sovereignties based on their own power to move the truth of prophecies away from foreign state and church organizations.     

Coloniality as a Barrier to Climate Action: Hierarchies of Power in a Coal-Based Economy

South Africa has a coal-based energy system and extractive economy, largely responsible for its high emission levels relative to countries with similar GDP. This extractive, coal-based economy began during British colonisation and today shows few signs of transitioning rapidly to limit climate change. This paper interrogates the role of coloniality in climate delay, given that colonisation is responsible for establishing fossil fuel dependence in South Africa. Combining theory on decolonisation, specifically colonial hierarchies of power, with a critical discourse analysis, this research uses interview and policy data to show how colonial power hierarchies can lead to climate delay in South Africa, through normalising emissions intensive development and silencing alternatives. In doing so, it highlights the need to recognise the colonial foundations of climate change and the potential for a coalition between decolonisation and climate action to motivate for radical change both in South Africa and at a global level.     

The executive lawmaking agenda: Political parties,prime ministers,and policy change in Australia

In Westminster systems, governments enjoy a privileged position in the lawmaking process that they can use to deliver on their campaign promises and achieve their policy goals. What policy areas do governments seek to affect through lawmaking? How stable is the executive lawmaking agenda? How responsive is that agenda to changes triggered by elections or by transitions in prime minister? This study uses a dataset of 3982 Australian bills introduced between 2000 and 2017 to answer these questions. While it finds considerable stability in the policy content of executive lawmaking agendas, the analysis also indicates that Australia's executive lawmaking agenda is more responsive to changes in prime minister than to changes in the party in power. As the first application of the comparative policy agendas approaches to government bills in Australia, this article offers new insights into executive lawmaking priorities during an especially turbulent period in Australian politics.     

Current archaeological research in the Middle Atlantic region of the eastern united states

A major theme of current archaeological research in the Middle Atlantic region of Eastern North America is the recognition of cultural variability across space and through time. The most significant culture change experienced during the entire time frame of regional prehistory occurred ca. 5000 B.P., when there were major changes in regional environments. Before 5000 B.P., adaptations were characterized by small groups of mobile hunters and gatherers. After 5000 B.P., there were continued growth in regional populations and increases in sedentism, intensive use of a limited range of food resources, social group size, and social complexity.     

The coming of age of the history of archaeology

Publications and organizational developments relating to the history of archaeology from 1989 until June 1993 are critically examined. Attention is paid to the changing motivations for producing such publications, their shifting intellectual orientation, controversies, especially as they relate to internal vs external approaches and the epistemological status of explanations, problems of verification, and the status of these studies as a subfield within archaeology.     

The prehistory of Cyprus: Problems and prospects

The archaeological record of prehistoric Cyprus is rich, diverse, well-published, and frequently enigmatic. Regarded by many as a bridge between western Asia and the Aegean, Cyprus and its past are frequently seen from scholarly perspectives prevalent in one of those two cultural areas. Its material culture, however, differs radically from that of either area. Apart from the early colonization episodes on the island (perhaps three during the pre-Neolithic and Neolithic), evidence of foreign contact remains limited until the Bronze Age (post-2500 B. C.). This study seeks to present the prehistory of Cyprus from an indigenous perspective, and to examine a series of archaeological problems that foreground Cyprus within its eastern Mediterranean context. The study begins with an overview of time, place, and the nature of fieldwork on the island, continues with a presentation and discussion of several significant issues in Cypriot prehistory (e.g., insularity, colonization, subsistence, regionalism, interaction, social complexity, economic diversity), and concludes with a brief discussion of prospects for the archaeology of Cyprus up to and beyond 2000.