Japanese carbon emissions patterns shifted following the 2008 financial crisis and the 2011 Tohoku earthquake

Unexpected events such as economic crises and natural disasters can have profound implications for energy systems and climate change mitigation efforts at different levels. Here we explore the national and regional carbon emission patterns (and their drivers) for the main economic sectors in Japan between 2007 and 2015, a period shaped by the 2008 financial crisis and the 2011 Tohoku Earthquake. Following the 2011 earthquake the previously decreasing regional emissions patterns started increasing in practically all regions except Hokkaido. This was mainly due to growing coal use particularly in the Kyushu, Chugoku and Kansai regions. Furthermore, most regions experienced shifts in the dominance of different drivers of emissions over time, with a stronger initial impact from economic effects after the 2008 financial crisis, followed by energy structure after the 2011 earthquake, and then by economic effects and energy intensity. These results offer a more nuanced understanding of how individual events can affect emissions at different periods and levels (national vs. regional) to inform the design of climate change mitigation strategies

Economic Value of Cultural Ecosystem Services from Recreation in Popa Mountain National Park, Myanmar: A Comparison of Two Rapid Valuation Techniques

Protected areas offer diverse ecosystem services, including cultural services related to recreation, which contribute manifold to human wellbeing and the economy. However, multiple pressures from other human activities often compromise ecosystem service delivery from protected areas. It is thus fundamental for effective management to understand the recreational values and visitor behaviors in such areas. This paper undertakes a rapid assessment of the economic value of cultural ecosystem services related to recreation in a national park in Myanmar using two valuation techniques, the individual travel cost method (TCM) and the Toolkit for Ecosystem Service Site-based Assessment (TESSA v.1.2). We focus on the Popa Mountain National Park, a protected area visited by approximately 800,000 domestic and 25,000 international tourists annually. Individual TCM estimates that each domestic visitor spent USD 20–24 per trip, and the total annual recreational value contributed by these visitors was estimated at USD 16.1–19.6 million (USD 916–1111 ha−1). TESSA estimated the annual recreational expenditure from domestic and international visitors at USD 15.1 million (USD 858 ha−1) and USD 5.04 million (USD 286 ha−1), respectively. Both methods may be employed as practical approaches to assess the recreational values of protected areas (and other land uses with recreational value), and they have rather complementary approaches. We recommend that both techniques be combined into a single survey protocol.</jats:p

Sustainable intensification of small-scale aquaculture production in Myanmar through diversification and better management practices

Small-scale aquaculture systems can contribute significantly to food and nutritional security, poverty alleviation, and rural development, especially in developing countries. However, the intensification of aquaculture systems often has negative environmental outcomes. The adoption of diversification practices (e.g. polyculture, pond-dike cropping (PDC)) and better management practices (BMPs) has been identified as a possible approach to intensify sustainably small-scale aquaculture production. This study assesses the sustainability outcomes of the adoption of diversification practices and BMPs in small-scale production models. We focus on Myanmar, a developing country characterized by a rapidly expanding small-scale aquaculture sector. We analyze 624 household surveys with small-scale aquaculture producers in central and northern Myanmar. We estimate the effects of diversification practices and BMPs on different sustainability outcomes, namely economic outcomes (i.e. aquaculture yield and benefit-cost ratio), environmental outcomes (i.e. nitrogen and phosphorus use efficiency), and food security outcomes (i.e. fish self-consumption and household dietary diversity) through linear mixed-effects models. Our results reveal that diversified production models (whether integrating or not integrating BMPs) could have significant positive effects on economic and food security outcomes, as well as phosphorus use efficiency, compared to 'unimproved monoculture'. However, such production models do not seem to have any major effect on nitrogen use efficiency. The adoption of BMPs on diversified production models seems to have little (if any) added effect on any of the studied sustainability outcomes, which suggests the need to improve existing BMPs or even develop new BMPs fit for Myanmar's context. These findings have implications about the possible contribution of diversification practices and BMPs for enabling sustainable intensification in small-scale aquaculture settings in Myanmar, and other rural developing contexts

Trade-off decisions in ecosystem management for poverty alleviation

The academic literature on trade-offs in ecosystem management has paid relatively little attention to justice and poverty reduction objectives. The aim of this paper is to highlight the multiple dimensions of trade-offs in ecosystem services management for poverty alleviation, and to support decision-makers in planning for the almost inevitable trade-offs arising from environmental interventions. The paper brings together different dimensions or lenses through which to analyse trade-offs in ecosystem management for poverty alleviation in a low-income country context. Following a literature review of trade-off decisions, the paper introduces the Balance Sheets Approach to structure trade-off analysis and appraise decisions. We apply the Balance Sheets Approach to analyse five case studies set in very different social-ecological systems where trade-offs were pertinent and undermined poverty alleviation. We show how the combination of ‘positive’ approaches, often used at strategic level, with ‘value’ approaches which analyse multiple values, multi-scale governance, power and capacity, is necessary to analyse complex trade-offs. Based on the case studies we identify four lessons for future trade-off analysis in the context of ecosystem management for poverty alleviation in low-income settings

Sustainable Smart Cities : Applying Complexity Science to Achieve Urban Sustainability

Publisher PD

Sustainable food systems-a health perspective.

Malnutrition in all forms, ranging from undernourishment to obesity and associated diet-related diseases, is one of the leading causes of death worldwide, while food systems often have major environmental impacts. Rapid global population growth and increases in demands for food and changes in dietary habits create challenges to provide universal access to healthy food without creating negative environmental, economic, and social impacts. This article discusses opportunities for and challenges to sustainable food systems from a human health perspective by making the case for avoiding the transition to unhealthy less sustainable diets (using India as an exemplar), reducing food waste by changing consumer behaviour (with examples from Japan), and using innovations and new technologies to reduce the environmental impact of healthy food production. The article touches upon two of the challenges to achieving healthy sustainable diets for a global population, i.e., reduction on the yield and nutritional quality of crops (in particular vegetables and fruits) due to climate change; and trade-offs between food production and industrial crops. There is an urgent need to develop and implement policies and practices that provide universal access to healthy food choices for a growing world population, whilst reducing the environmental footprint of the global food system

Multi-stakeholder perception analysis of the status, characteristics, and factors affecting small-scale carp aquaculture systems in Bangladesh

Inland aquaculture is essential for the food and livelihoods of millions of small-scale producers across the global South. Very diverse actions from national governments, civil sector and international organizations have been seeking to enhance the performance of small-scale aquaculture systems. However, many of these efforts are constrained by the general lack of information about the status and characteristics of the sector. In many cases, data are unavailable, highly aggregated or outdated, thus failing to provide a clear picture of the situation on the ground to inform relevant efforts. Bangladesh is one such country, where, on the one hand, the aquaculture sector is extremely important for national economic growth, rural development and food and nutrition security, but on the other hand suffers from a general lack of quality data to inform relevant actions. In this study, we report the findings generated though eight workshops that engaged 215 stakeholders involved in the Bangladesh small-scale carp aquaculture sector. By leveraging the expertise of the participants, we obtain an overarching picture of the characteristics of small-scale carp production models around the country. The findings suggest a large variability of production models and levels of intensification, which are mainly based on polyculture involving species such as rohu, catla, and mrigal. These systems have been roughly categorized in four types characterized by different levels of intensification and dominant species, which are present across the country with varied socio-economic, infrastructure and environmental conditions. The study also identified an unfolding shift in the last years, from subsistence-based to commercially oriented production. In terms of market preference, quite different carp attributes are valued among small-scale producers across the country, with large size of carp, its rapid growth and the availability of improved strains being the most valued. As aquaculture, and particularly carp aquaculture, is important for rural development in Bangladesh by sustaining households’ income and livelihoods in different ways, we argue for the need to undertake more detailed studies to understand the characteristics and performance of these types of small-scale aquaculture systems. This will be indispensable for informing policies and actions that aim to target more effectively the different types of producers, and to improve the overall performance and sustainability of the sector