The coastal area has experienced significant changes of waste problems over the past few years. To resolve the waste problems in coastal areas, an understanding of community perception is needed to support government efforts. Therefore, this study aims to review people’s perspectives on the dynamics of waste in the coastal areas. Community perception data were compiled through semi-structured interviews with the surrounding communities in coastal areas. ArcGIS and load count analysis were used to analyze the waste density. Waste was collected from the coastal area in Ambon Bay and analyzed using waste density calculation and spatial analysis. The results show that the total waste density obtained at the coastal area of Ambon Bay is 0.249 kg/m², of which 0.078 kg/m² is the density of plastic waste, and 0.171 kg/m² is the density of non-plastic waste. Communities in coastal areas have made efforts to deal with waste problems, but the efforts made are still ineffective in overcoming these problems. That problem happens because there is a lack of knowledge of the community and lack of infrastructure in coastal areas. The research results have the potential for replication in other coastal areas and are used as the basis of decision making for waste management improvement.

Food security is a major concern in many countries, including Indonesia. Land productivity has decreased due to shrinking agricultural land, global warming, and land degradation. Precision agriculture (PA) empowers people to use agricultural technology to increase productivity. Therefore, this study aims to examine PA from adopting agricultural machinery. The method used in time series analysis is pooled least squares (PLS). The results show that the transition from conventional methods to using mechanized tools, especially tractors, significantly (at a sig level of 1%) affects rice production in Indonesian rice centers. These results form the basis that Indonesian rice farmers are enthusiastic about various technologies, so the opportunities for PA are significant. However, the gap between PA research in Indonesia and developed countries needs attention, and research collaboration can be a solution. From a practical standpoint, PA integrated with the internet is challenging for Indonesian farmers. Therefore, empowering farmers through various synergy mechanisms is proposed in this study.

Jàmbá: Journal of Disaster Risk Studies aims to engage, inform, and catalyse scholarly discourse within research and real-world practices that work towards the minimisation of vulnerabilities and disaster risks throughout developing communities with special emphasis on Africa.

Batik industries have some positive impact on economic growth and socio-cultural development. However, they also produce wastewater in large quantities with high pH, containing biochemical oxygen demand, containing chemical oxygen demand and also have a substance of total suspended solid that do not meet quality standards and also could have negative impacts on the environment. Paoman village, Indramayu regency, is one of the batik small industries supporting economic and socio-cultural development in local communities, although there is an installations system of wastewater treatment plant (WWTP). The study aimed to identify priorities in wastewater management on batik industrial center based on environmental studies, economic studies and social factors in the local community and institutional aspects using analytical hierarchy process. The priorities were identified as follows: (1) application of WWTP systems and technologies for environmental aspect, (2) understanding the perceptions of batik small and medium enterprises (SMEs) for the social aspect, and (3) the cost of installation, operation and maintenance of WWTP for economic aspect.

From an environmentally conscious and ecological perspective, the sustainability of cities within the effects of climate change are closely related to the wise use of resources and modifications in the ecological status of the environment. In terms of the ecological environment, the sustainability of smart cities entails meeting present and future societal demands for the environment of the water, land, and air, among others. Environmental and the ecological concerns that arise from rapid climate change and monetary developments are shown in the inconsistency between ecological assets, environmental pollution, and the destruction of nature. In this study, the authors aim to develop a strategy to deal with climate change in urban areas using Remote Sensing and the Driver-Pressure-State-Impact-Response (DPSIR) Framework with a case study in Jakarta Smart City. The DPSIR framework, which will be developed and implemented in the city of Jakarta, is a smarter and more sustainable framework that is evaluated through a systematic evaluation of sustainability with quantitative research using the entropy weight method and Partial Least Square-Structural Equation Modeling (PLS-SEM). These methods evaluate 58 representative elements of environments at the urban level, including the shortcomings of earlier research such as data availability, spatial and temporal constraints, and several related ecological indicators, such as soil pH, wind speed, air quality index as well as land changes in the spatial (spatiotemporal) time series. The results of the study show that in the metropolitan city of Jakarta, the Drivers that are related to climate change are the rate of population growth and the rate of industrial growth which, although increases people’s income and GRDP in Jakarta; it also creates Pressures, namely an increase in the amount of water consumption and in the amount of wastewater. Based on these pressures, the environmental conditions (State) of Jakarta city have undergone several environmental changes, such as loss of water supply, changes in wind speed, changes in rainfall, and increasing concentrations of the Air Pollutant Standard Index. The Impact of these three elements resulted in the increase in household and industrial water consumption, an increase in annual electricity consumption, and deteriorating air quality. Hence, the Response to these four interrelated causal variables is that the Jakarta Provincial Government must increase annual funds for the construction of urban community facilities, increase the production capacity of clean water supply, build environment-friendly wastewater treatment facilities, increase the capacity of waste processing infrastructure and transportation fleets, and educate people to use water wisely to reduce the level of water use.

Flooding in Jakarta is a frequent disaster. Of the 2, 572 disaster events in Indonesia throughout 2018, floods and cyclones dominated more than half of the events, which made it the most frequent disaster throughout the year. This caused by various factors such as climate change, land subsidence, sea level rise and socio-economic growth. The high population in Jakarta, which reached 10.4 million due to the flow of urbanization in the past 30 years, has also added to the level of vulnerability to disaster risk. Based on secondary data that been studied from the results of previous studies, Jakarta has annual flood patterns and larger 5-year floods such as in 1996, 2002 and 2007. According to the risk assessment of flood exposure published by DKI Jakarta National Disaster Management Agency (BNPB) 10.177.570 people are potentially exposed to disasters. Physical losses reached Rp 2, 967, 433 million, and economic losses reached Rp 12, 732 million. This is certainly needed to handle mitigation with well-organized disaster management. For this reason, government intervention is needed to integrate the stakeholders who will contribute. The concept of flood disaster management that is integrated with the role of government in it is expected to be a solution to overcome the problem of flooding that occurs in Jakarta this day, besides that, community participation is also very much needed.