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A city region is a unit comprising an urban core and surrounding peri-urban and, occasionally, rural areas. The Regional Circulating and Ecological Sphere (R-CES) proposed by the Japanese government is a guiding approach for policymaking that prioritises the harmonised flow of resources between urban and rural areas, low-carbon society, circular...

The crisis ignited by COVID-19 has transformed the volume and composition of waste generation and requires a dynamic response from policy makers. This study selected Bangkok as a case study to semi-quantitatively examine the impact of the COVID-19 outbreak on consumer-generated food and plastic waste by examining changes in lifestyles and...

Ensuring sustainable consumption and production (SCP) patterns is an important task for achieving Sustainable Development Goal 12 by 2030. To facilitate international and domestic collaboration toward regional SCP, we developed a collaborative workshop method to generate and structure ideas about consumption and production (CP) patterns and...

Both hydropower dams and global warming pose threats to freshwater fish diversity. While the extent of global warming may be reduced by a shift towards energy generation by large dams in order to reduce fossil-fuel use, such dams profoundly modify riverine habitats. Furthermore, the threats posed by dams and global warming will interact: for...

Waste-to-Energy (WtE) technologies seem to be an option to tackle the growing waste management problems in developing Asia. This paper presents a quantitative assessment of the environmental and economic attributes of two major WtE technologies: landfill gas to energy (LFG-to-energy) and incineration in Thai cities. Net greenhouse gas (GHG)...

This study provides a computationally-simple method to annually update existing national forest maps and model future forest change. It involves integrating national forest maps and global tree cover maps to monitor annual forest change, and then modeling future change by linear extrapolation of the historical trend.

Biofuels are often presented as an environmentally friendly alternative to fossil fuels, however, empirical analysis that is widely reported in the literature shows that biofuel production can have negative environmental and social impacts. The potential for these negative impacts can be avoided through careful planning of biofuel feedstock...

A new method was developed for mapping forest, agricultural, and urban land cover using remote sensing imagery. It is designed to better detect small land cover objects (e.g. small forest or agricultural patches) and monitor their change (e.g. fine-scale deforestation) using freely-available satellite imagery.

From North Asia's "airpocalypses" to South Asia's water crisis, the signs that Asia needs to transition to more sustainable development models are as clear as they are compelling. There is also an equally compelling body of literature on how countries can transition to more sustainable development models. However, much of the sustainable...

This study evaluated the effects of image pansharpening on Vegetation Indices (VIs) in an agricultural area of Thailand, and found that pansharpening was able to downscale single-date and multi-temporal VI data without introducing significant distortions. The downscaled (15m resolution) VI values can be used for estimating above-ground biomass...