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The episodic outbreak of COVID-19 due to SARS-CoV-2 is severely affecting the economy, and the global count of infected patients is increasing. The actual number of patients had been underestimated due to limited facilities for testing as well as asymptomatic nature of the expression of COVID-19 on individual basis. Tragically, for emerging economies with high population density, the situation has been more complex due to insufficient testing facilities for diagnosis of the disease. However, the recent reports about persistent shedding of viral RNA of SARS-CoV-2 in the human feces have created a possibility to track the prevalence and trends of the disease in communities, known as wastewater-based epidemiology (WBE). In this article, we highlight the current limitations and future prospects for WBE to manage pandemics.

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The paper reports on a comparative study of three different cases on vision and strategy development for climate change adaptation planning in (i) The South African Breede-Overberg Catchment, (ii) The Mississippi Estuary-New Orleans region and (iii) The Dutch Rhine-Meuse Estuary. The objective of the paper is twofold: to develop a better understanding of such processes and to further develop the Backcasting-Adaptive Management (BCAM) methodology. A framework for case evaluation is developed using six dimensions: (i) inputs and resources, (ii) future vision, (iii) stakeholder engagement, (iv) methodological aspects, (v) pathway development and (vi) impact. Major conclusions based on a cross-case comparison and testing propositions are (i) participatory vision development is a strong tool for climate change adaptation planning in different governance contexts and shows considerable diversity in its application in these contexts; (ii) a single, shared future vision is not a prerequisite for vision and pathway development and endorsement; (iii) broad stakeholder engagement enriches strategy development, but the involvement of marginal groups requires additional efforts and capacity building; (iv) multiple pathways and robust elements are useful but require novel expertise; and (v) more institutional embeddedness and support for participatory processes lead to better implementation of the outcomes of these processes.

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When the first wave of the COVID-19 pandemic started to manifest itself across the globe at an unprecedented pace and magnitude, the various emergency response strategies pursued by highly affected countries in Europe raised many questions about their supposed effectiveness. To contain the outbreak, a rapid and adequate emergency response was vital to control emergent public health risks, but emergency management was challenged by large uncertainty due to many unknowns about crucial determinants of the outbreak, determining the effectiveness of the response, which was often derived from uncertain information. This paper aims to draw lessons from the first wave of the COVID-19 pandemic and it presents a review of strategies for emergency response pursued in eight European countries, including tipping points that triggered strategy shifts in emergency response. The paper shows that: (i) these countries have a culturally determined preference for policy response style (Mediterranean, continental and liberal style) depending on their relative scores on power distance and uncertainty avoidance, which (ii) is reflected in the initially adopted control paradigm and the associated strategy; (iii) Mediterranean countries (Italy, France, Spain) with high levels of power distance and uncertainty avoidance have a tendency to respond to new unknown situations by deploying strong rule-based regulatory systems which offer mental security and social order, whereas continental (Germany and Austria) and liberal countries (the Netherlands, the UK and Sweden) do this to medium and much lower extents.

This paper analyses five major transitions in watershed management in the Lower Mississippi River from the early 19th century to the present. A conceptual framework is developed for analysing the role of visions, agency, and niches in water management transitions and applied to a historical case on water management in the Lower Mississippi River. It is shown that water management regimes change over time and that major transitions were preceded by niches, in which new visions were developed and empowered. The case shows that: (i) emerging visions play an important role in guiding transitions; (ii) agency enables the further diffusion of visions and niches; (iii) vision champions play an important role in transitions, but are not decisive; (iv) each transition has led to an extension of the number of societal functions provided, which has led to more complex water management regimes in which functions are combined and integrated; and (v) external landscape factors are important, as they can lead to awareness and urgency in important decision making processes.

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