This study focuses on investigating the impact of climate change on the availability of safe drinking water and human health in the Southwest Coastal Region of Bangladesh (SWCRB). Additionally, it explores local adaptation approaches aimed at addressing these challenges. The research employed a combination of qualitative and quantitative methods to gather data. Qualitative data were collected through various means such as case studies, workshops, focus group discussions (FGDs), interviews, and key informant interviews (KIIs). The study specifically collected qualitative data from 12 unions in the Shyamnagar Upazila. On the other hand, through the quantitative method, we collected respondents’ answers through a closed-ended questionnaire survey from 320 respondents from nine unions in the first phase of this study. In the next phase, we also collected data from the three most vulnerable unions of Shyamnagar Upazila, namely Poddo Pukur, Gabura, and Burigoalini, where 1579 respondents answered questions regarding safe drinking water and health conditions due to climate change. The findings of the study indicate that local communities in the region acknowledge the significant impact of sea-level rise (SLR) on freshwater sources and overall well-being, primarily due to increased salinity. Over 70% of the respondents identified gastrointestinal issues, hypertension, diarrhea, malnutrition, and skin diseases as major waterborne health risks arising from salinity and lack of access to safe water. Among the vulnerable groups, women and children were found to be particularly susceptible to waterborne diseases related to salinity. While the study highlights the presence of certain adaptation measures against health-related problems, such as community clinics and health centers at the upazila level, as well as seeking healthcare from local and paramedical doctors, it notes that these measures are insufficient. In terms of safe drinking water, communities have adopted various adaptation strategies, including pond excavation to remove saline water (partially making it potable), implementing pond sand filters, rainwater harvesting, and obtaining potable water from alternative sources. However, these efforts alone do not fully address the challenges associated with ensuring safe drinking water.

Environmental education (EE) emerged in Portugal as an organized field of collective action about 30 years ago. At this time of the return to democracy, major social and environmental changes had begun to occur. Yet, after 30 years of EE, together with significant improvements in the education system and curricula, the real impacts of these mostly voluntary and aggressive efforts aimed at preparing future citizens to deal effectively and sensitively with environmental problem solving are not yet evident. The pathways and social context of these efforts aimed at upgrading EE in Portugal, and their apparent failure to meet their objectives, form the basis of the analysis in this paper. The authors examine the results of a survey questionnaire sent to 15,000 public and private schools all running projects formally associated with both EE and education for sustainable development (ESD). The primary purpose of the analysis was to identify the trends, constraints, and potentials for these EE/ESD projects and initiatives within primary and secondary schools. In addition, perspectives as to the emerging trends in ESD in Portugal are discussed, bearing in mind the shifting educational context.

This article evaluates the previous experiences of Local Agenda 21 (LA21) in Portugal and Brazil, in order to identify factors hindering implementation and how its legacy might contribute to a localized Agenda 2030. Grounded on comparative analysis of LA21 applied research, it includes questionnaire surveys and a review of reports and action plans, in addition to statements collected from informal interviews with national authorities. LA21 outcomes seem to have been adversely affected by structural constraints arising from economic difficulties, and more specifically from inherited centralist traditions of local governance. Despite the fact that aspects such as community engagement in decision-making and the safeguarding of the local commons have been on the LA21 agenda ever since the Earth Summit (1992), our results show that actual achievements in these areas are meager. Nevertheless, LA21 planted the seeds of participative, bottom-up, and transformative development in local communities.

Soil amended with biochar is considered a significant response to climate change, remediation of degraded soils, and agronomic improvements. An artisanal mobile pyrolysis kiln was developed for small-sized biomass inputs. Approximately 190 kg of biochar was produced in 21 carbonisation processes using acai residues (Euterpe oleracea Mart.) as raw material, as they are among the most abundant agro-industrial residues in the Amazon. It is a valuable and underutilised biomass resource, often inadequately discarded, causing environmental impact and health risks. The physicochemical and structural characteristics of four representative biochar samples from the pyrolysis processes were evaluated using different techniques. The produced biochar had an average pH of 8.8 and the ICP-OES results indicate that the most abundant elements were potassium (K) and phosphorus (P). Results of the elemental composition indicate that the produced biochar has a very stable carbon with an average H/C ratio of 0.23 and O/C ratio of 0.16, indicating that the pyrolysis performed was effective in transforming organic and volatile compounds into stable structures. Variations in nutrient contents call for soil application planning, as performed for other agricultural inputs. The developed mobile kiln can be adapted and favour the decentralisation of biochar production among small and medium-sized producers. Here, we show that even with variations in artisanal production, the biochar produced exhibits favourable characteristics for agronomic use and combating climate changes.

Local Agenda 21 is essentially a process of democratic practicing, insofar as it involves sharing political competencies in decision making by the local authorities, and the mobilisation of all citizens and civil society organisations in the process. It is, thus, a course of action in which the willingness and openness of local political leaders is as important as the ability of citizens to take the initiative of learning about and getting involved in local public life. Unfortunately, there are no more than twenty LA21 processes running in Portugal, and most of them do not fulfil all the parameters required. This paper discusses some hypotheses on the lack of success of LA21 in Portugal, which are related to structural political conditions for local governance and public participation. Resorting to some surveys on environmental policy issues (applied to both the municipal leaders and the population), the aim is to characterise the trends of mobilisation on local sustainability in Portuguese society, particularly with regard to the citizenry and local administrations.