Soil reinforcement techniques have become essential in geotechnical engineering to improve weak soils. This study deals with the use of waste vegetable plastic bags made of High-Density Polyethylene (HDPE) as reinforced materials for fine grained soils selected from Nizwa-Oman. Laboratory practical works were conducted to evaluate compaction and unconfined compressive strength (UCS) characteristics of soil reinforced with varying number of plastic mats. Namely, 1, 2, 3, and 4. The results indicated that reinforcing the weak soil with HDPE plastic bags significantly improved compressive strength with optimal performance observed at three reinforcement mats making four soil layers. The study not only provides an effective method for weak soil improvement but also contributes and offers an eco-friendly to sustainable waste management by repurposing non-biodegradable plastic waste. This work maps to several United Nations Sustainable Development Goals (SDGs) due to its environmental, infrastructural, and waste management implications.
The community of Ngijo Hamlet, Purwogondo Village, Boja District, Kendal Regency, possesses the local wisdom of Tuk Serco to clean water channels and sustain springs. This study aims to (1) describe the local wisdom of Tuk Serco in maintaining springs, (2) identify community behaviours associated with Tuk Serco’s local wisdom in addressing climate change impacts, and (3) analyse the role of Tuk Serco’s local wisdom in mitigating climate change effects. A qualitative method was employed, utilizing in-depth interviews, observations, and documentation. Data were analysed using NVIVO 12 Plus software. The findings indicate that the Tuk Serco spring is a vital resource for the community. Rituals and norms, including prohibitions and recommendations, are strictly followed to ensure the sustainability of the spring. The most prevalent community behaviour related to Tuk Serco's local wisdom is adherence to norms, particularly the Nyadran Serco tradition. Elements of local wisdom (knowledge, values, ethics, morals, and norms) play a significant role in climate change mitigation, with norms having the greatest impact. The local wisdom of Ngijo Hamlet serves as a concrete example of how traditional values can synergize with modern conservation efforts to mitigate climate change effects.
The rapid population growth of close to 1 million people generates more than 600 tons of waste per day and will increase in 2020-2022. This has an impact on the environment and public health of Padang City so that waste management must be a priority agenda for the government. In overcoming the waste problem in Padang City, Padang City Regional Regulation No. 21/2012 on waste management has been issued, but the waste problem still exists. Government political collaboration is the key, in line with the principles of Pancasila politics that incorporate national values in sustainable governance practices. The research used a qualitative approach with a phenomenological research type and was descriptive in nature. Secondary data involved policy analysis and related literature. This research uses the theory of the stages of Collaborative Governance which consists of four stages, namely: assessment, initiation, deliberation, and implementation. Results showed the collaboration program between government, community, and private sector to overcoming waste problems has been implemented, but the implementation has not been optimal. The initiation and deliberation stages between the community and the government are not implemented, so the collaboration process between the two stakeholders is not optimal.
The phenomenon of climate change has been observed in Aceh, Indonesia. However, no study has specifically examined high school students' conceptual knowledge, adaptation strategies, and mitigation measures related to climate change in the region. This study aims to assess students' conceptual knowledge, adaptation strategies, and mitigation efforts related to climate change in Aceh, while investigating how these factors are influenced by gender, grade level, geographical landscape, and implementation of green school programs (Adiwivata). A sample of 410 students was taken from a total population of 137,283. Data were collected using online questionnaires distributed by teachers and analyzed using descriptive statistics, PCA, and ANOVA. The results of the study show that students' knowledge, adaptation, and mitigation of climate change in Aceh are generally inadequate. This is because the current framework and implementation of climate change education have not effectively achieved the goals of increasing knowledge, adaptation, and mitigation of climate change at the secondary school level. Gender was found to affect Knowledge I, while grade level influenced Mitigation III. The geographic landscape impacts Mitigation I and II. Green school programs have been shown to have a positive effect on Knowledge I, Adaptation I, and all components of climate change mitigation. These results show the need for expanded efforts to improve climate change knowledge, adaptation, and mitigation among high school students in Aceh, through education policies that encourage teachers to implement learning about climate change in a continuous, detailed, and innovative manner.
This study aims to describe the empowerment of Social Forestry Business Groups for sustainable environmental development in Salibutan Village, Lubuk Alung District, Padang Pariaman Regency. This study was motivated by the suboptimal role of stakeholders related to empowerment. This is due to budget limitations and a shortage of human resources, specifically extension workers and assistants for social forestry business groups, as well as the marketing of forest products managed by the community. The research gap in this study is that few similar studies have analyzed community empowerment within the unique concept of social forestry in a local framework, especially in Indonesia. This study employs a qualitative method with a descriptive approach, utilizing interviews, observations, and documentation to collect data. Source triangulation techniques were used to ensure the validity of the data. The study results indicate that the parties involved in empowering Social Forestry Business Groups in Salibutan Village have not fulfilled their duties and responsibilities according to their respective roles. This is because each stakeholder still faces obstacles in empowering the Social Forestry Business Group, namely limited budget funds from the Forestry Service, Village Head, and Tourism, Youth and Sports Service to implement the empowerment program, minimal human resources, limited extension workers and assistance from the Service and the dependence of the Social Forestry Business Group on the World Resources Institute (WRI) as one of the stakeholders. The contribution of this study is to provide an overview of the problems and governance of community empowerment, serving as the basis for compiling recommendations to enhance the program's effectiveness in the future.
Management of the Mangrove and Crab Conservation Area (KKMK) has not been optimal, making it vulnerable to damage. A Social-Ecological System (SES) approach is needed to understand the linkages between community dynamics, governance, and mangrove ecology. This research aims to provide recommendations for mangrove ecosystem sustainability strategies using the SES approach. Data and information came from primary data (surveys and interviews) and secondary data (agencies and previous research). Management strategies in KKMK refer to the key variables of SES, which are then further analyzed using Participatory Prospective Analysis (PPA). The strategy for RS-RG connectivity is to conduct regular data collection related to mangrove ecology. The strategy for RS-RA is to supervise the use of mangrove resources. The strategy for RS-RU is to carry out rehabilitation to increase density and species diversity. The strategy for RU-RA is to limit the capture of mangrove crabs to maintain the population in nature. The strategy for RU-RG is to increase supervision and create new policies that align with the conditions in KKMK. The strategy for RA-RG is to provide socialization to RA on the importance of preserving mangroves and take firm action against perpetrators of mangrove ecosystem destruction.
This study investigates the factors influencing community willingness to manage household hazardous waste (HHW) in Semarang City, Indonesia, through a path analysis approach grounded in the Theory of Planned Behavior (TPB). A total of 500 respondents were surveyed across 16 sub-districts using stratified random sampling. The analysis explores both direct and indirect effects of demographic (age, education, occupation), socioeconomic (monthly expenses), and cognitive [knowledge] variables on willingness to engage in HHW management. The findings highlight knowledge as the most influential determinant of willingness (β = 0.469, p < 0.001), emphasizing its mediating role between education and willingness. Education shows no significant direct effect but exerts a strong indirect effect through knowledge (β = 0.282). Age negatively affects both knowledge (β = −0.176) and willingness (β = −0.097), indicating that younger individuals tend to be more knowledgeable and more willing to manage HHW. Monthly expenses also have a positive, though relatively weaker, direct (β = 0.086 ) and indirect (β = 0.066) influence on willingness via knowledge. Employment status was not found to be a significant factor. The model explains 73.6% of the variance in willingness (R2 = 0.736) and 26.4% in knowledge (R2 = 0.264). These results reinforce the relevance of TPB in environmental behavior studies while suggesting the need for context-specific modifications, such as considering digital media exposure and infrastructural access. Policy implications include prioritizing educational interventions, improving access to information and facilities, and targeting youth as key agents in promoting sustainable HHW management.
Agriculture is central to Somalia’s economy, employing nearly half of the population and serving as a key source of rural livelihoods. However, the sector is increasingly undermined by climate change, deforestation, and armed conflict. In a context marked by high unemployment and institutional fragility, understanding how these challenges affect agricultural employment is essential for policy design. This study aims to analyze the shortand long-run effects of climate change (rainfall, temperature, $\mathrm{CO}_2$ emissions, and deforestation), conflict (internal and external), and agricultural productivity (crop and livestock production) on agricultural employment in Somalia between 1991–2022. Using Autoregressive Distributed Lag (ARDL) and Generalized Method of Moments (GMM) models, the study captures dynamic interactions while addressing endogeneity and model robustness through stability and diagnostic tests. The results show that rising temperatures and $\mathrm{CO}_2$ emissions significantly reduce agricultural employment, while deforestation contributes to long-term job losses by degrading arable land. Rainfall variability supports employment in the short run but lacks long-term significance. Internal conflict exhibits a paradoxical stabilizing effect due to labor immobility, while external conflict leads to displacement and labor market disruption. Livestock production emerges as a consistent driver of rural employment, whereas crop production remains stagnant and fails to absorb labor. By integrating environmental and political stressors within a unified econometric framework, this study contributes to the literature on employment dynamics in fragile contexts. The findings underscore the need for climate-resilient farming practices, conflict-sensitive rural development, reforestation, and investment in the livestock sector to safeguard livelihoods and promote economic resilience in Somalia.
Awiq-awiq is a local wisdoms in forest management used by indigenous people of Bayan in Noth Lombok, Indonesia. This study aims to identify the behavior of the Bayan indigenous people in controlling deforestation for environmental sustainability from a deep ecology perspective based on awiq-awiq forest management. This qualitative research conducted in the Bayan indigenous community in North Lombok. The participants in this study involved traditional leaders, indigenous peoples, sub-district heads, and village heads of Bayan Village. The research data was collected through participatory observation, in-depth interviews, and documentation. Data analysis includes data reduction, synthesis categorization, answering the research objectives, and drawing conclusions. The results indicated that the community’s behavior in managing forests based on awiq-awiq aligns with deep ecology principles, which can control deforestation, thus affecting environmental sustainability. Forest management based on awiq-awiq may contribute in controlling deforestation for environmental sustainability. The Bayan indigenous people’s behavior toward the forest, which is controlled by awiq-awiq, aligns with the deep ecology perspective. This study provides recommendations for environmental sustainability, specifically through the development of a program to implement forest conservation and the optimization of a region’s cultural elements in order to preserve sustainability.
The behavior of investors in markets prone to crisis especially towards pollution generating industries are still under examined. The effect of pollution generation and management on stock prices of associated firms in Nigeria is yet unclear. This present study bridges the gap by examining the influence of ESG disclosure on the stock prices of manufacturing firms in Nigeria with particular emphasis on consumable products. The major aim is to establish the extent to which environmental factors such as carbon emissions, energy efficiency, community engagement, employee welfare and governance factors affect the stock prices of manufacturing firms in Nigeria. The study covers a period from 2000-2024 using 18 listed manufacturing firms and the data gathering is from the annual report of firms included in this study. From the panel data analysis, environmental and social disclosures do not have significant impact on stock prices of manufacturing firms in Nigeria. Considering the governance disclosure, there is a positive significant influence at 10% level on stock prices of manufacturing firms in Nigeria. The result confirms the growing recognition that there is an input to firm value by way of governance practice. The study concludes that ESG impact is yet to be well addressed in the Nigerian manufacturing firms and this is negating the global sensitization of this mechanism to promote environmental sustainability among firms. The study recommends that manufacturing firms should improve product quality and develop overall ESG strategies addressing environmental, social and governance issue while regulators should prescribe explicit standards and requirement for Nigerian companies in terms of overall disclosure on ESG.
Open Access
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