Explore the vast range of titles available.

Although conservation efforts have sometimes succeeded in meeting environmental goals at the expense of equity considerations, the changing context of conservation and a growing body of evidence increasingly suggest that equity considerations should be integrated into conservation planning and implementation. However, this approach is often perceived to be at odds with the prevailing focus on economic efficiency that characterizes many payment for ecosystem services (PES) schemes. Drawing from examples across the literature, we show how the equity impacts of PES can create positive and negative feedbacks that influence ecological outcomes. We caution against equity-blind PES, which overlooks these relationships as a result of a primary and narrow focus on economic efficiency. We call for further analysis and better engagement between the social and ecological science communities to understand the relationships and trade-offs among efficiency, equity, and ecological outcomes.

Issue Title: Special Feature: Socially Sustainable Degrowth as a Social-Ecological Transformation

This paper introduces the special feature ofEcology and Societyentitled “Traditional Ecological Knowledge and Global Environmental Change. The special feature addresses two main research themes. The first theme concerns the resilience of Traditional Ecological Knowledge (hereafter TEK) and the conditions that might explain its loss or persistence in the face of global change. The second theme relates to new findings regarding the way in which TEK strengthens community resilience to respond to the multiple stressors of global environmental change. Those themes are analyzed using case studies from Africa, Asia, America and Europe. Theoretical insights and empirical findings from the studies suggest that despite the generalized worldwide trend of TEK erosion, substantial pockets of TEK persist in both developing and developed countries. A common trend on the studies presented here is hybridization, where traditional knowledge, practices, and beliefs are merged with novel forms of knowledge and technologies to create new knowledge systems. The findings also reinforce previous hypotheses pointing at the importance of TEK systems as reservoirs of experiential knowledge that can provide important insights for the design of adaptation and mitigation strategies to cope with global environmental change. Based on the results from papers in this feature, we discuss policy directions that might help to promote maintenance and restoration of living TEK systems as sources of socialecological resilience.

Our review highlights how traditional ecological knowledge influences people's adaptive capacity to socialecological change and identifies a set of mechanisms that contribute to such capacity in the context of community-based biodiversity conservation initiatives. Twenty-three publications, including twenty-nine case studies, were reviewed with the aim of investigating how local knowledge, community-based conservation, and resilience interrelate in social-ecological systems. We highlight that such relationships have not been systematically addressed in regions where a great number of community conservation initiatives are found; and we identify a set of factors that foster people's adaptive capacity to social-ecological change and a number of social processes that, in contrast, undermine such capacity and the overall resilience of the social-ecological system. We suggest that there is a need to further investigate how climate variability and other events affect the joint evolution of conservation outcomes and traditional ecological knowledge, and there is a need to expand the current focus on social factors to explain changes in traditional ecological knowledge and adaptive capacity towards a broader approach that pays attention to ecosystem dynamics and environmental change.

We explore the implications of blockchain technology for conservation and environmental policy. Drawing on an analysis of 27 initiatives, we examine their goals, assumptions, visions and workings. We find that these initiatives do not yet form a coherent approach, there is too much variety in their environmental focus, and the role of blockchain technology in achieving their goals. However, they share a faith in environmental-commodity markets, a penchant for surveillance and upward accountability, and lack a critical analysis of the main causes of environmental problems. Blockchain initiatives are forming a growing community of praxis and deepen ongoing trends in neoliberal environmental governance, characterised by the increased commodification and global accounting, surveillance and marketisation of environmental goods, services and outcomes. We suggest these services and outcomes fail to challenge the actual root causes of environmental degradation. At the same time, they are not all necessarily flawed by these characteristics. They can render information held by communities financially valuable in ways those communities may find useful. Future research should focus on exploring whether blockchain initiatives may at least translate in concrete environmental outcomes and contribute to the well-being of natural resource managers.

Protected areas (PAs) serve as key institutions for biodiversity conservation. Therefore, ensuring their long-term resilience in the face of adversity is essential. Using resilience thinking we investigate the institutional resilience of PAs across Sub-Saharan Africa. Specifically, we examine how the managers of 50 terrestrial PAs across 17 countries responded to the COVID-19 pandemic and identify factors that facilitated or hindered their capacity to respond. We show that although most PAs were negatively affected by COVID-19, these impacts varied heavily in magnitude and duration across contexts. Many of these impacts had not been addressed, with some response attempts falling short or resulting in unintended consequences. Funding gaps, lack of agency, and a lack of resilience-thinking appeared as barriers to the PAs’ capacity to respond. Coping responses were the most common type used to navigate the crisis, whereas adaptive and transformative responses were rare. We interpret such predominant focus on short-term, coping responses as a sign of institutional resistance rather than resilience, and as a missed opportunity for transformation. We advocate for collective documentation and critical reflection on the effects and experiences of PAs emerging from COVID-19 and other shocks and conclude by emphasizing the need to mainstream resilience-thinking in conservation governance and management.

An important part of conservation practice is the empirical evaluation of program and policy impacts. Understanding why conservation programs succeed or fail is essential for designing cost‐effective initiatives and for improving the livelihoods of natural resource users. The evidence we seek can be generated with modern impact evaluation designs. Such designs measure causal effects of specific interventions by comparing outcomes with the interventions to outcomes in credible counterfactual scenarios. Good designs also identify the conditions under which the causal effect arises. Despite a critical need for empirical evidence, conservation science has been slow to adopt these impact evaluation designs. We identify reasons for the slow rate of adoption and provide suggestions for mainstreaming impact evaluation in nature conservation.

Bioenergy deployment offers significant potential for climate change mitigation, but also carries considerable risks. In this review, we bring together perspectives of various communities involved in the research and regulation of bioenergy deployment in the context of climate change mitigation: Land‐use and energy experts, land‐use and integrated assessment modelers, human geographers, ecosystem researchers, climate scientists and two different strands of life‐cycle assessment experts. We summarize technological options, outline the state‐of‐the‐art knowledge on various climate effects, provide an update on estimates of technical resource potential and comprehensively identify sustainability effects. Cellulosic feedstocks, increased end‐use efficiency, improved land carbon‐stock management and residue use, and, when fully developed, BECCS appear as the most promising options, depending on development costs, implementation, learning, and risk management. Combined heat and power, efficient biomass cookstoves and small‐scale power generation for rural areas can help to promote energy access and sustainable development, along with reduced emissions. We estimate the sustainable technical potential as up to 100 EJ: high agreement; 100–300 EJ: medium agreement; above 300 EJ: low agreement. Stabilization scenarios indicate that bioenergy may supply from 10 to 245 EJ yr−1 to global primary energy supply by 2050. Models indicate that, if technological and governance preconditions are met, large‐scale deployment (>200 EJ), together with BECCS, could help to keep global warming below 2° degrees of preindustrial levels; but such high deployment of land‐intensive bioenergy feedstocks could also lead to detrimental climate effects, negatively impact ecosystems, biodiversity and livelihoods. The integration of bioenergy systems into agriculture and forest landscapes can improve land and water use efficiency and help address concerns about environmental impacts. We conclude that the high variability in pathways, uncertainties in technological development and ambiguity in political decision render forecasts on deployment levels and climate effects very difficult. However, uncertainty about projections should not preclude pursuing beneficial bioenergy options.

We assess the additional forest cover protected by 13 rural communities located in the southern state of Chiapas, Mexico, as a result of the economic incentives received through the country's national program of payments for biodiversity conservation. We use spatially explicit data at the intra-community level to define a credible counterfactual of conservation outcomes. We use covariate-matching specifications associated with spatially explicit variables and difference-in-difference estimators to determine the treatment effect. We estimate that the additional conservation represents between 12 and 14.7 percent of forest area enrolled in the program in comparison to control areas. Despite this high degree of additionality, we also observe lack of compliance in some plots participating in the PES program. This lack of compliance casts doubt on the ability of payments alone to guarantee long-term additionality in context of high deforestation rates, even with an augmented program budget or extension of participation to communities not yet enrolled.

Heavily featured over the last few years in global research and policy agreements, Nature-Based Solutions (NBS) remain however exposed to much debate over the ways their current design and ability to achieve both environmental goals and social needs. As they become mainstream climate mitigation and adaptation options, their capacity to deliver expected benefits, especially when contemplating equity and justice, is at least uncertain. Through a critical review of existing debates and perspectives on NBS, this paper questions their uptake and points at the frequent embeddedness of NBS in speculative and elite-based development paths in both urban and rural areas. We present an alternative, justice-oriented approach to NBS so that projects can avoid nature-enable dispossession and instead build nature-inspired justice that prioritizes the needs, identities, and livelihoods of the most ecologically and socially vulnerable residents.