This research uses a participatory method to develop exploratory future energy scenarios for an ecological intentional community in the north of Scotland, Findhorn Ecovillage. These futures serve several purposes: They can be used as decision support by the community, provide insights about the challenges for further decarbonisation in places where the environmental impact from activities has already been reduced, and insights into the implications for meeting the net zero emissions target for the UK on a community spatial scale. The energy futures for Findhorn Ecovillage were based on discussions at a facilitated online stakeholder workshop. The participants were led through a series of steps to create a 2 x 2 matrix based on democratically selected drivers for change, and in developing a pathway through time for each of the resulting four scenarios. The exploratory futures method adopted also enabled participants to consider interactions with wider society including central and devolved government, the wider economy, and the environment. The findings highlight that while intentional communities are to some degree withdrawn from the mainstream, they are embedded within and depend upon the wider society and economy. This could inhibit or accelerate further decarbonisation and could present a risk of undermining the community's lifestyle principles.

Futures studies can fulfil a variety of purposes; for informing policy, developing investment or business strategies, and changing perceptions of what the future may hold. Futures can therefore be described as having transformative potential. This paper uses a participatory scenario approach to develop regional energy futures for a U.K. case study in the North of Tyne region. Two sets of futures are developed; pre-pandemic, and during the pandemic. This was for insights into the challenges for developing subnational scale futures, and how futures thinking may have been impacted by the pandemic. The North of Tyne energy future scenarios are based on discussions in two facilitated stakeholder workshops, pre and during the pandemic. It was found that the pandemic had resulted in shifts in practices and behaviours such as increased home working, and an appreciation of local environments and communities. However, there were commonalities too. In both settings, decarbonisation was a strong driver for change in the energy system, as was the need for fairness in the transition. There were barriers in futures thinking that had to be overcome, most notably was the presumption that meeting the net zero target was a certainty. This presented difficulties in imagining futures that didn’t achieve this target or did so but more slowly. The importance of being able to imagine living in all kinds of future worlds will be critical in a system undergoing such profound change so that strategic foresight is developed to minimise risks of missing the net zero target.

Two of the most widely emphasized contenders for carbon emissions reduction in the electricity sector are nuclear power and renewable energy. While scenarios regularly question the potential impacts of adoption of various technology mixes in the future, it is less clear which technology has been associated with greater historical emission reductions. Here, we use multiple regression analyses on global datasets of national carbon emissions and renewable and nuclear electricity production across 123 countries over 25 years to examine systematically patterns in how countries variously using nuclear power and renewables contrastingly show higher or lower carbon emissions. We find that larger-scale national nuclear attachments do not tend to associate with significantly lower carbon emissions while renewables do. We also find a negative association between the scales of national nuclear and renewables attachments. This suggests nuclear and renewables attachments tend to crowd each other out. Nuclear and renewable energy are considered two of the most important technologies towards decarbonization though it is not clear how their adoption relates to national emission reductions. Sovacool et al. look at data from 123 countries to examine emission reductions associated with nuclear- or renewable energy-focused strategies.

Cities raise major challenges and opportunities for achieving sustainability. Much literature on urban sustainability focuses on specific aspects such as planning practices, urban policy or the diffusion of more sustainable technologies or practices. However, attempts at understanding the mechanisms of structural change towards sustainability have resulted in the emergence of an interdisciplinary field of sustainability transitions research. Transitions research has developed a phase model of transitions in which predevelopment, take-off, acceleration and stabilization phases are distinguished. However, the acceleration phase has received limited attention so far. This is a crucial gap as policy-makers are keen to accelerate transitions. This paper aims to enhance our understanding of how local actions contribute towards accelerating urban sustainability transitions. It does so by testing an acceleration mechanisms framework through exploring the collective agency of local initiatives in urban sustainability transitions. Drawing on a case study of the city of Brighton and Hove (UK), the paper finds that despite favourable local political conditions, there is a lack of evidence of acceleration apart from in individual domains such as food or mobility. Progress is found to depend on the agency of initiatives to both scale up sustainable practices and embed these practices into local governance arrangements.

The ways in which institutions are reconfigured to change mainstream selection pressures to favour sustainability is central to research on sustainability transitions but has only recently begun to receive more attention. Of this existing work, empirical attention has mainly focused on the national level with less attention to local dynamics. Attending to this gap, we mobilise theory on institutionalisation processes and insights from the politics of transitions literature and take an actor perspective to investigate the agency of local sustainability initiatives to navigate local governance processes and reconfigure selection environments at the urban scale. Our work subsequently demonstrates the importance of diverse actor tactics, of networking for advocacy and of networking for the creation of informal, ad hoc governance arenas.

In their Policy Forum “China-U.S. cooperation to advance nuclear power” (5 August, p. [547][1]), J. Cao et al. make the case for low-carbon energy trajectories that use “next-generation” nuclear reactors. However, they fail to address the challenges inherent in the reactors they advocate.

In their Policy Forum “China-U.S. cooperation to advance nuclear power” (5 August, p. [547][1]), J. Cao et al. make the case for low-carbon energy trajectories that use “next-generation” nuclear reactors. However, they fail to address the challenges inherent in the reactors they advocate.

The deployment of eco-innovations in developing countries is a key driver of their contribution to efficiently addressing global environmental challenges. It is also a key driver of markets for eco-innovation and sustainable economic development. This report explores the barriers developing countries face in accessing markets for eco-innovation. It outlines the key considerations policy needs to address to overcome these barriers and discusses the extent to which selected existing policy mechanisms and organisation have achieved this. The key finding of the report is that the majority of existing policy mechanisms fails to recognise the critical importance of developing indigenous eco-innovation capabilities amongst developing country firms. Indigenous eco-innovation capabilities are essential to facilitating both the diffusion of existing ecoinnovations within developing countries and sustainable economic development based on the adoption, adaption and development of environmentally sound technologies that fit with the bespoke conditions faced by developing countries. Building up eco-innovation capabilities in developing countries requires a shift away from the current focus on large project based approaches which emphasise the transfer of the hardware aspects of clean technologies, towards approaches that emphasise flows of codified knowledge (know-how and know-why) and tacit knowledge. Policy also needs to be improved to better respond to the context-specific technological and cultural requirements which vary inter- and intra-nationally.