Variation in perception of environmental change in nine Solomon Islands communities: implications for securing fairness in community-based adaptation

Community-based approaches are pursued in recognition of the need for place-based responses to environmental change that integrate local understandings of risk and vulnerability. Yet the potential for fair adaptation is intimately linked to how variations in perceptions of environmental change and risk are treated. There is, however, little empirical evidence of the extent and nature of variations in risk perception in and between multiple community settings. Here, we rely on data from 231 semi-structured interviews conducted in nine communities in Western Province, Solomon Islands, to statistically model different perceptions of risk and change within and between communities. Overall, people were found to be less likely to perceive environmental changes in the marine environment than they were for terrestrial systems. The distance to the nearest market town (which may be a proxy for exposure to commercial logging and degree of involvement with the market economy), and gender had the greatest overall statistical effects on perceptions of risk. Yet, we also find that significant environmental change is underreported in communities, while variations in perception are not always easily related to commonly assumed fault lines of vulnerability. The findings suggest that there is an urgent need for methods that engage with the drivers of perceptions as part of community-based approaches. In particular, it is important to explicitly account for place, complexity and diversity of environmental risk perceptions, and we reinforce calls to engage seriously with underlying questions of power, culture, identity and practice that influence adaptive capacity and risk perception.

     

Study of oil-water partitioning of a chemical dispersant using an acute bioassay with marine crustaceans

The toxicity of seawater dispersions of a chemical dispersant to two marine crustaceans was investigated in the presence and absence of various quantities of a non-toxic mineral oil. From the results and a physical-chemical partitioning analysis, a limiting value of the oil-water partition coefficient of the toxic compounds is deduced suggesting that essentially all of the toxic compounds in the dispersant will partition into solution in water following dispersant application to an oil spill. This conclusion simplifies interpretation and prediction of the toxic effects of a dispersed oil spill.The combined bioassay-partitioning procedure may have applications to the study of the toxicity of other complex mixtures such as industrial effluents.     

Bridging conceptual “silos”: bringing together health promotion and sustainability governance for practitioners at the landscape scale

Environmental health issues are examples of “wicked problems” that require cross-sectoral collaboration at the community level, yet health practitioners and environmental stakeholders find it challenging to see how and why they could be working together. Supportive organisations have been identified as the most vital enabler for individual professionals to participate actively in cross-sectoral initiatives. Ability to justify inter-professional cooperation makes it easier for practitioners to gain the necessary approvals within their institutional mandates. This paper introduces a new conceptual framework that bridges health promotion and sustainability governance to facilitate practical cross-sectoral collaboration that targets complex health-related environmental and social-ecological challenges. The proposed framework integrates six concrete overlapping themes linking health promotion and sustainability governance. The framework also highlights examples of areas where the fields could benefit from one another. Moreover, children's environmental health is proposed as a desirable overall outcome and an attractive venue for potential collaboration, because of its critical role in the public health and well-being of future generations. As a determinant of adult health, children's environmental health emphasises the vital interdependencies between health and the environment.