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This study aims to provide a review for scour in complex rivers and streams with coarser bed material, steep longitudinal bed slopes and dynamic environments, in the interest of the safety and the economy of hydraulic structures. The knowledge of scour in such geographical complexities is very crucial for a comprehensive understanding of scour failures and for establishing definitive criteria to bridge this major research gap.

The existing available literature shows significant work done in case of silt, sand and small sized coarser bed material but any substantial work for bed material of gravel size or above is lacking, resulting in a wide gap. Though some researchers have attempted to explore possibilities of refining the existing models by adding pier size, shape, sediment non-uniformity and armouring effects, which otherwise have been given a miss by the various researchers, including the pioneer in the field Lacey–Inglis (1930). But still, a rational model for scour estimation in such complex conditions for global use is yet to come. This is because all the parameters governing the scour have not been studied properly till date as is evident from the globally available literature and is witnessed in the field too, in recurrent failure of hydraulic structures especially bridges.

The researchers presume that the finer materials move only as a result of erosion. However, in actual field conditions, it has been observed that the large-sized stones also roll down and cause huge erosion along the river bed and damage the hydraulic structures, especially in the steep river/stream beds along hilly slopes. This fact has been overlooked in the models available globally and has been highlighted only in the current work in an attempt to recognize this major research gap. A study carried out on a number of streams globally and in Jammu and Kashmir, India also, has shown that in steep river and stream beds with bed material consisting of gravel size or greater than gravel, large scour holes ranging from 1 m to 5 m were created by furious floods, and due to other unknown forces along the channel path and near foundations of hydraulic structures.

To the best of the authors’ knowledge, this work is purely original.

This is a modified version of the 2022 George Herbert Mead Lecture that I delivered at the Annual Meeting of the National Communications Association in New Orleans, LA. Drawing upon ethnographic research with Mississippi River pilots, I outline the strengths and weaknesses of Mead's conceptualization of “mind” as a means to develop the “great cooperative community” he envisioned. I argue that although we possess the cognitive capacity to take the attitude of a multitude of others, even during complex and evolving scenarios, there are also material incentives for some groups to impede the emergence of the mind via the construction of “closed-networks.” I identify one example of a closed-network – professional associations – to demonstrate how and why they attempt to prevent outsiders from role-taking with members of their group. Although the persistence of closed networks hampers Mead's vision of a more co-operative society, it is only by understanding the origins of such barriers to mind that we can address the root causes of their construction.

The paper introduces a lesser-known cultural landscape along the sacred Bhagirathi-Hooghly river in the Indian city of Kolkata, with particular reference to its built and natural heritage. The narratives cover the cultural and ecological qualities of the unique “ghat-scape” (riverfront pavilions with steps descending into the river) and their contemporary urban challenges. It also explores the suitability of the Historic Cultural Landscape (HCL) tools, or their adapted versions, in managing this exceptional landscape.

The paper is structured under six discrete sections covering the inventory and assessment, interpretation and evaluation and possible roadmap for the ecological restoration of the riverfront cultural landscape. Primary and secondary studies were conducted to understand the related challenges and opportunities. The authors then examined the application of the HCL tools based on a conceptual framework and identified the alternative approaches suitable for its restoration. Finally, a successfully restored ghat environ is taken as a model and reviewed against the most potent approach in addressing the eco-cultural criticalities.

The paper argues in favour of a paradigm shift from riverfront “development” to riverfront “restoration” with particular emphasis on the ghat-architecture. Three eco-cultural restoration alternatives were derived out of the HCL principles. A practical case study found that a community-led approach positively influences restorative actions, cultural heritage management and long-term sustainability.

The HCL tools comprising planning, regulatory systems, financial designs and community engagement have been explored for the first time in the context of the unique riverfront “ghatscape” of Kolkata. An under-discussed topic, it has been brought to the centre stage to gain new insights into the Indian cultural landscape heritage. An HCL-based new approach in their management came forth through a review of a successful case study.

This paper seeks to broaden the agenda for environmental and ecological accounting research across several dimensions, extending the form of accounting in this field by encouraging research into its historical roots and developing a definition of accounting that can address the severe environmental and ecological challenges of the 21st century.

The authors explored environmental and ecological accounts from the dawn of human consciousness across a wide variety of media and in a broad range of forms. This theoretical approach reacts to the cold capitalist commodification of nature inherent in much environmental accounting practice, which documents, values and records usage of natural capital with little attempt to address depletion and loss.

By analysing the earliest ecological and environmental “accounts” recorded by humans at the dawn of human consciousness, and considering a wide array of subsequent accounts, the authors demonstrate that rather than being a secondary, relatively recent development emerging from financial accounting and reporting, environmental and ecological accounting predated financial accounting by tens of thousands of years. This research also provides a wealth of perspectives on diversity, not only in forms of account but also in the diversity of accountants, as well as the broadness of the stakeholders to whom and to which the accounts are rendered.

The paper can be placed at the intersection of accounting history, the alternative, interdisciplinary and critical accounts literature, and environmental and ecological accounting research.

Practically, the authors can draw ideas and inspiration from the historical forms and content of ecological and environmental account that can inform new forms of and approaches to accounting.

There are social implications including the diversity of accounts and accountants derived from studying historical ecological and environmental accounts from the dawn of human consciousness especially in the broadening out of the authors' understanding of the origins and cultural roots of accounting.

This study concludes with a new definition of accounting, fit for purpose in the 21st century, that integrates ecological, environmental concerns and is emancipatory, aiming to restore nature, revive biodiversity, conserve species and enhance ecosystems.

This study aims to reconstruct how smallholder farmers implement livelihood adaptation strategies to survive and escape poverty, thereby mitigating or eliminating potential livelihood risks by utilizing their available assets.

This research employed a qualitative approach. For the collection of primary data, the researcher conducted observations and in-depth interviews and engaged with the lives of smallholder farmers during the data collection period.

Among the various livelihood adaptation strategies, only migration and profit-sharing strategies enable smallholder farmers to escape poverty. However, migration is an unsustainable adaptation strategy. When farmers move to new locations, they often resort to slash-and-burn methods for clearing land, which can lead to forest degradation and deforestation. Profit sharing is a sustainable livelihood adaptation strategy that falls into a different category. This approach can lift farmers out of poverty, increase their income and have no negative environmental impact. Other adaptation strategies include adjustments to traditional agriculture, both on and off-farm diversification, involving the family in income generation, reducing farming costs, practicing frugality in post-harvest processes, converting land from coffee cultivation to other crops and borrowing money and selling owned assets. Smallholder farmers implement these strategies to survive the existing economic conditions.

The profit-sharing strategy was a novel livelihood adaptation approach that previous studies had yet to uncover at the research site. In this strategy, farmers assume the roles of both managers and laborers simultaneously during farming, while toke (the capital owners) play the role of farming funders. The generated profit is then shared between farmers and toke based on the agreement established at the outset of their collaboration.

This article addresses some of the most pressing issues related to climate change and its potential consequences, namely population migration in Southeast Asia. It sheds light on how slow-onset events interact with other variables to limit the ability of people to adapt to stressors through human mobility.

The study adopts an analytical methodology to evaluate the extent to which the planning policy framework addresses these issues within the context of achieving resilient development.

Climate stressors will force millions of people to move within their own countries, while others will be forced to cross international borders, leaving others stranded. Desertification, sea level rise, ocean acidification, air pollution, changing rainfall patterns and biodiversity loss are all examples of slow-onset processes that the author believes will be exacerbated by climate change.

This will exacerbate many existing humanitarian issues, and more people may be forced to flee their homes as a result. This research helps improve the understanding of migration’s social, economic and environmental implications.

The research offers a novel perspective and analysis of the unique migration challenges arising from climate change in the Southeast Asian context.

The purpose of this paper is to examine the alternative accounts produced by Green Earth Volunteers (GEV), a Chinese environmental non-governmental organisation, over a 10-year period in the context of their campaign to create visibilities about hydroelectric dam projects along the Chang Jiang.

Drawing on conceptions of the human–nature relationship, including those evident in ancient Chinese philosophy and mythology, and the Chinese way of viewing and resolving conflict, this paper offers an interpretive analysis of the alternative accounts of GEV in terms of their form and content.

In terms of their content, the alternative accounts reflect elements of interrelated thinking, being underpinned by a recognition of the relationship between humans and nature, which is evident in Confucianism, Taoism and ancient Chinese mythology. The strategies adopted by GEV are a non-confrontational but feasible way to promote their ecological beliefs in the Chinese context.

The study suggests that social and environmental accounting (SEA) in developing countries is steeped in local cultural and philosophical traditions that need to be considered and incorporated into the design of alternative accounts.

The study contributes to the very limited literature that offers qualitative analyses of SEA in developing countries.

Drawing findings from the river erosion-prone district Bhola in Bangladesh, this study presents the nature and causes of human displacement and the types of resilience livelihood options for reducing risks caused by river erosion. The study used a quantitative research approach, in which a survey was employed. Data were collected through face-to-face interviews with 371 heads of households from three unions of three Upazilas (sub-divisions) in the Bhola District. Results showed that 95% of the households were displaced by river erosion, 54% of them were displaced two to four times in the last five years, 30% of the households were displaced to embankments, and 22% were displaced to their relatives’ houses. Nearly 70% of the households reported river erosion as a main cause and 42% referred other disasters. Regarding livelihood options, 47% of the households desired to engage in fishing labour, 44% in day labour, and 33% in independent fishing. During river erosion, 93% of the household members had to engage in income-generating activities, and one-half of them had to change their livelihood options. Finding new livelihood options and resilience strategies to reduce displacement would be an important guideline for disaster managers, policy-makers, and development practitioners.

The present work focuses on evaluating the physical and mechanical characteristics of geopolymer concrete (GPC) by replacing the sodium silicate waste (SSW) in place of traditional river sand. The aim is to create eco-friendly concrete that mitigates the depletion of conventional river sand and conserves natural resources. Additionally, the study seeks to explore how the moisture content of filler materials affects the performance of GPC.

SSW obtained from the sodium silicate industry was used as filler material in the production of GPC, which was cured at ambient temperature. Instead of the typical conventional river sand, SSW was substituted at 25 and 50% of its weight. Three distinct moisture conditions were applied to both river sand and SSW. These conditions were classified as oven dry (OD), air dry (AD) and saturated surface dry (SSD).

As the proportion of SSW increased, there was a decrease in the slump of the GPC. The setting time was significantly affected by the higher percentage of SSW. The presence of angular-shaped SSW particles notably improved the compressive strength of GPC when replacing a portion of the river sand with SSW. When exposed to elevated temperatures, the performance of the GPC with SSW exhibited similar behavior to that of the mix containing conventional river sand, but it demonstrated a lower residual strength following exposure to elevated temperatures.

Exploring the possible utilization of SSW as a substitute for river sand in GPC, and its effects on the performance of the proposed mix. Analyzing, how varying moisture conditions affect the performance of GPC containing SSW. Evaluating the response of the GPC with SSW exposed to elevated temperatures in contrast to conventional river sand.