Carbon offsetting and renewable energy development

New carbon crediting and offsetting mechanisms are being developed under the Paris Agreement. Polluters can meet their emission reduction targets by acquiring and retiring carbon offset credits. Globally, most of these credits come from renewable energy sources. However, their additionality is increasingly questionable. Global renewable electricity capacity continues to grow. Greenhouse gas emissions from coal-fired power generation are starting to fall, as governments and organisations pledge to curtail emissions, more capital is mobilised for energy transition, and renewable energy technologies become commercially competitive. The opportunity to earn carbon offset credits is becoming less indispensable to renewable energy development. Aggregate emissions could rise above the baseline level when polluters increase their emission budgets by using carbon credits generated from a renewable energy installation that is part of the baseline scenario. To safeguard environmental integrity, the conditions for including renewable energy in carbon crediting and offsetting schemes should be reconsidered.     

3D heritage visualisation and the negotiation of authenticity: the ACCORD project*

This article examines the question of authenticity in relation to 3D visualisation of historic objects and monuments. Much of the literature locates their authenticity in the accuracy of the data and/or the realism of the resulting models. Yet critics argue that 3D visualisations undermine the experience of authenticity, disrupting people’s access to the materiality, biography and aura of their historic counterparts. The ACCORD project takes questions of authenticity and 3D visualisation into a new arena – that of community heritage practice – and uses rapid ethnographic methods to examine whether and how such visualisations acquire authenticity. The results demonstrate that subtle forms of migration and borrowing occur between the original and the digital, creating new forms of authenticity associated with the digital object. Likewise, the creation of digital models mediates the authenticity and status of their original counterparts through the networks of relations in which they are embedded. The current pre-occupation with the binary question of whether 3D digital models are authentic or not obscures the wider work that such objects do in respect to the cultural politics of ownership, attachment, place-making and regeneration. The article both advances theoretical debates and has important implications for heritage visualisation practice.     

Survey and Excavation at the Henges of the Wharfe Valley,North Yorkshire, 2013 – 15

Large scale geophysical survey has identified two classic henges in the Wharfe Valley and excavation at the henge at Yarnbury has proved its Bronze Age date, reuniting it with antiquarian finds hitherto lacking secure provenance. These henges are placed in their archaeological context suggesting that Wharfedale may have been an important route in cross-Pennine contacts during the third and second millennia BC and that the Neolithic archaeology of this upland region may be more mainstream than peripheral.     

Macroeconomic Effects of 21st Century Trade and Investment Agreements: The Case of the Trans‐Pacific Partnership

Following United States withdrawal, the Trans‐Pacific Partnership agreement (TPP) is likely to be replaced or complemented by a series of bilateral deals between the US and TPP partners. In this case, TPP will shape trade, finance and public policy globally even without formal US participation. Proponents of TPP emphasize its prospective economic benefits, with economic growth increasing due to rising trade volumes and investment. Widely cited projections suggest modest GDP gains after 10 years, varying from less than half a percentage point in the USA to 13 per cent in Vietnam. However, these projections assume full employment and constant income distribution in all countries, excluding some of the major risks of trade liberalization. This article provides alternative projections of the TPP's economic effects using the United Nations Global Policy Model, which allows for changes in employment and income distribution. Using this model, the authors obtain very different results. They find that the benefits to economic growth are even smaller than those projected with full‐employment models, and are negative for Japan and the USA. More importantly, they find that the TPP will likely lead to losses in employment and increases in inequality.     

Evaluating socio-economic change in the Andes using oribatid mite abundances as indicators of domestic animal densities

Tracking social and economic change in Andean societies prior to the invasion of the Spanish has always been a difficult task, especially given that these cultures failed to develop any form of written record. Here we present a new method of reconstructing socio-economic shifts in a rural setting from the analysis of the frequency of oribatid mite remains present in a sedimentary lake sequence. Oribatid mites are soil-dwelling microarthropod detritivores, some of which inhabit areas of grassland pasture. One of the primary controls governing their abundance in such habitats is the level of animal dung present. We propose that past fluctuations in mite remains can be related to the density of domestic animals using the area of pasture and, by extension, may provide a proxy for broad-scale social and economic change through time. To test this hypothesis, we analysed a high-resolution (∼6 years) mite record from a sequence of well-dated sediments from Marcacocha, a climatically sensitive lake site located close to an important Inca trading route across the Andes. The timing and magnitude of mite fluctuations at Marcacocha since the 1530s show remarkable correspondence with a series of major, well-documented socio-economic shifts in the region relating to political and climatic pressures. This provided the confidence to extend the record back a further 700 years and reconstruct changes in domestic herbivore densities for a period of time that lacks historical documentation and thereby infer changes in human occupation of the basin. In particular, high mite abundances appear to correspond clearly with the rapid rise and fall of the Inca Empire (c. AD 1400–1532). We argue that small lake basins such as Marcacocha may be particularly suitable for obtaining continuous oribatid mite records and providing the possibility of reconstructing large herbivore abundances in the Andes and elsewhere.