The disease outbreak COVID-19 pandemic impacted public health and safety and the educational systems worldwide. For fear of the further spread of diseases, most educational institutions, including Bangladesh, have postponed their face-to-face teaching. Therefore, this study explores public university student’s perceptions towards online classes during the COVID-19 pandemic in Bangladesh. Data had collected among students of Islamic University, Kushtia, Bangladesh, through an online survey. The study followed a quantitative approach, where the survey technique was used as an instrument of data collection. Results showed that most students faced difficulty participating in virtual classes and could not communicate with their friends correctly during online classes. Thus, they faced challenges in online schooling, and the majority of the students preferred conventional types of learning to virtual classes and did not understand the content of virtual classes easily. The study also explored that most students did not feel comfortable in online classes. Still, considering the present pandemic situation, they decided to participate in online classes to continue schooling. Besides, the study discovered that female students showed a better view than male students regarding online classes, and urban students have more positive appreciation than rural students. Furthermore, laptop or personal computer users showed more positive perceptions towards online education than mobile users. Moreover, Broadband/Wi-Fi users have more positive perceptions than mobile network users. These findings would be an essential guideline for governments, policymakers, technology developers, and university authorities for making better policy choices in the future.

As transition areas between aquatic ecosystems and the adjacent terrestrial ones, riparian regions are highly exposed to coastal climate hazards. This article describes how climate change and extreme weather impact vulnerable riparian communities and settlements. The analysis is done by reviewing past research and empirical case studies from riparian rural communities of the impact zone of the Sundarbans in Bangladesh, the world’s most extensive mangrove forest. The article discusses the climate-related impacts on households through a Severity Index of Vulnerability and assesses the adaptation responses they may pursue. The principal climate-related vulnerabilities and impacts due to increases in temperature, storm surges, sea flooding, and sea-level rise are seawater intrusion and riverbank erosion. Many households have adopted several autonomous reactive adaptation strategies rather than planned ones, to cope with these impacts. However, government organisations and NGOs provide less than optimal technical and financial support to households for planned and anticipatory adaptive responses. The main barriers to adaptation were the high cost of improved crop varieties, inadequate agricultural extension services, and a lack of knowledge on effective climate adaptation. The restoration of the mangrove ecosystem may increase its resilience and, among other things, make local communities less exposed. The article also presents some adaptation measures proper to reduce the climate-related vulnerability of riparian settlements.

Dhaka city is experiencing rapid urbanization with high economic growth and industrial development. Instead of taking a variety of poverty mitigation and social safety programs, the overall number of people living in the informal urban settlements is increasing at a faster rate than the urban population due to the growing figure of internally displaced people by environmental and socio-economic impacts. This study explores the spatiotemporal growth of city’s irregular and informal settlements occupied by rural–urban migrants, utilizing geographical information systems (GIS) and remote sensing and looks into its impact on the changing land use and land cover pattern and urban built environment. Informal settlements had mapped through the visual interpretation of Google high-resolution image focusing temporal patterns of 2006, 2010 and 2016. The land use analysis shows that cultivated land and water bodies all decreased in the area while built-up areas, bare soil, and informal settlements increased over the same period with the encroachment of low-lying lands for settlements.