Factors affecting knowledge, attitude, and practice of COVID-19: A study among undergraduate university students in Bangladesh.

The global expansion of the COVID-19 outbreak is one of the worst disasters the world has faced in recent decades. This study explored various factors of knowledge, attitude, and practice regarding COVID-19 among Bangladeshi undergraduate university students. In addition, we also look at how COVID-19 based knowledge, attitude, and practice influence each other. Using a random sampling technique and a self-administered structured questionnaire survey, this study collected data from 167 private university students in Bangladesh from 1st October to 30th October 2020. Data were analyzed using descriptive statistics (including frequencies, percentages, and means), binary logistic regression, bivariate regression analysis, and factor analysis. The findings suggest that most of the students learned about COVID-19 from various sources, including news media (TV, radio, newspapers, etc.), international organizations (WHO, UN, etc.), various government programs, or from their friends, family members, or neighbors. Most of the students were concerned about becoming sick, keeping social distance, and family members' job insecurity, followed by the university shutdown and the subsequent quarantine. Many students believe Bangladesh's media, government, medical sector, and religious organizations played a significant role during COVID-19. Binary logistic regression demonstrates that students' gender, department, and residency significantly explained their COVID-19 knowledge. In addition, students' attitudes significantly vary with their religion and place of residence. Students' departments and semesters found significant in explaining their practice regarding COVID-19. Moreover, factor analysis results also identified several crucial factors in explaining students' overall knowledge, attitude, and practice of COVID-19. Finally, we found a statistically significant relationship between knowledge, attitude, and practice.

Does anthropogenic upstream water withdrawal impact on downstream land use and livelihood changes of Teesta transboundary river basin in Bangladesh?

This article evaluates the impact of upstream water withdrawal on downstream land use and livelihood changes in the Teesta River basin, using a combination of geospatial and social data. Results show that water bodies gradually decreased, indicating a low volume of water discharge from upstream of the Teesta River basin due to the construction of several barrages. During the study period, a significant change in the area of water bodies was observed between 2012 and 2016, from 881 to 1123 Ha, respectively. The cropland area increased because farmers changed their cropping practice due to water scarcity and floods. Trend analyses of riverbank erosion and accretion patterns suggest an increase in accretion rates compared to the rate of riverbank erosion. A household survey was conducted using a self-administered questionnaire where 450 respondents have participated (farmers: 200 and fishermen: 250). Survey results show that most of the farmers (65.5%) and fishermen (76.8%) think that the construction of upstream barrages caused harm to them. The majority of farmers and fishermen feel water scarcity, mainly in the dry season. We found that a large number of participants in the study area are willing to change their occupations. Furthermore, participants observed that many local people are migrating or willing to migrate to other places nowadays. Our study also found that farmers who face water scarcity in their area are more likely to change their location than their counterparts, while those who face problems in their cultivation are less likely to move. On the other hand, upstream barrages, fishing effects, and getting support in crisis significantly predict fishermen's occupation changes. We believe our results provide essential information on the significance of transboundary water-sharing treaties, sustainable water resource management, and planning.

How do teachers' perceptions of climate change vary in terms of importance, causes, impacts and mitigation? A comparative study in Bangladesh.

Since climate change education is an integral element in the increasingly urgent global approach to solving the problem of climate change, understanding perceptions of climate change among teachers in different academic institutions could play a significant role in how and to what extent institutions address the need to educate learners on this subject, specifically, and participate in other climate change mitigation strategies, in general. This study, therefore, examines teachers' perceptions of climate change regarding its significance, causes, consequences, and mitigation, through analysis of a self-administered structured questionnaire completed by 95 teachers from public and private educational institutions in the city of Sylhet in Bangladesh. Results from descriptive and inferential statistical analysis show that public and private school teachers have an understanding of climate change regarding its significance, causes, consequences, and mitigation. The results also reveal that the sociodemographic characteristics of teachers, as well as academic-related factors, influence their perceptions of climate change. This research concludes that teachers in public institutions have a greater awareness and understanding of climate change than those working in private schools. The research findings have broader implications for further research and policy recommendations and, in particular, draw the attention of the Departments of Education and Disaster Management in Bangladesh or in countries with similar contexts to introduce environmental and disaster education and training opportunities for teachers.

The link between climate change, food security and fertility: The case of Bangladesh.

Climate change is likely to worsen the food security situation through its impact on food production, which may indirectly affect fertility behaviour. This study examines the direct and indirect effects of climate change (e.g., temperature and precipitation) via the production of major crops, as well as their short- and long-term effects on the total fertility rate (TFR) in Bangladesh. We used structural equation modelling (SEM) to perform path analysis and distinguish the direct influence of climate change on fertility and its indirect influence on fertility through food security. We also applied the error correction model (ECM) to analyze the time-series data on temperature and precipitation, crop production and fertility rate of Bangladesh from 1966 to 2015. The results show that maximum temperature has a direct effect and indirect negative effect-via crop production-on TFR, while crop production has a direct positive effect and indirect negative effect-via infant mortality-on TFR. In the short term, TFR responds negatively to the maximum temperature but positively in the long term. The effect of rainfall on TFR is found to be direct, positive, but mainly short-term. Although indicators of economic development play an important part in the fertility decline in Bangladesh, some climate change parameters and crop production are non-negligible factors.