Previous research indicates a distinct seasonal pattern in mortality rates. Increases are prominent during the northern-hemispheric cold season. These patterns are seen in overall mortality, diabetes mellitus, circulatory, digestive, and respiratory diseases. A principal component analysis indicates that departure from normal temperature, minimum, maximum, and average daily temperature, and dew-point temperature are the primary atmospheric variables that influence mortality patterns. ANOVA and Kruskal-Wallis tests support findings of principal component analysis. Although a day-to-day relationship between mortality rates and atmospheric variables was noted in several instances, results suggest that the influence of the primary atmospheric variables on mortality rates is greatest when a three to five-day lag time is in place. Furthermore, results indicate that the combination of these variables in conjunction with frontal passage is linked to seasonal increases in mortality. A combination of atmospheric variables that influence mortality rates has been identified, however, their exact influence is still unclear.

Thesis (M. A. (Sociology)) -- University of Limpopo, 2017 / Climate change has become one of the most daunting challenges facing humanity in the 21st century. It has direct and profound effects on the environment, economy, health and safety. Since most developing countries have agro-based economies, they are more vulnerable to climate change impacts as compared to the developed world. The aim of this study was to explore Mutoko rural community members’ understanding of climate change and the indigenous measures they use to adapt to its impacts. The study was empirical and data were collected using in-depth interviews. The findings show that Mutoko community members have knowledge of changes in climatic conditions which manifest as increased temperature and erratic rainfall patterns. The impact of increased temperature and erratic rainfall were observed. Furthermore, community members mentioned the type of clouds, mountains and the direction from which the rains comes as indications of climate change. It has also been discovered that numerous cultural activities such as ‘mafuwe’ (rain making ceremony) have changed due to climate change. As a result various adaptation measures such as changing crop types are employed by community members to sustain their livelihood. The study concludes that even though community members in Mutoko are aware of climate change and its indicators, they still struggle to adapt regardless of them having a few adaptation strategies they have developed and use to lessen the negative impacts of changing climatic conditions on their livelihood. Key words: Climate change, Climate hazards, Indigenous practices, Knowledge, Mutoko community,

Urban areas house most of the global population and are also responsible for large shares of global greenhouse gas emissions. Cities and municipalities thus play a significant role in modern society to achieve an energy transition to renewable energy sources and to adapt to climate change. Achieving such a transition is a difficult process due to the high energy density and complexity of urban multi-energy systems. This is further exacerbated by the adverse effect future climate hazards will likely have on urban infrastructure. Despite this, energy development and climate adaptation plans are often researched and drafted in a disjointed manner. In many instances, future energy strategies do not consider climate impacts, whereas climate adaptation tactics disregard energy production. This study proposed that such mutually exclusive analysis and decision-making increases the vulnerability of planned and optimised future urban energy systems. Investigating the Swedish municipality Malmö, the study focused on achieving a future energy transition in its electricity network and then considering potential climate change impacts. Current urban energy plans and capacity were used to forecast the renewable energy potential for 2030 in Malmö’s geographical area. This formed the basis for modelling an optimised hybrid renewable energy system for the municipality using HOMER Grid. Based on future climate data and Malmö’s climate adaptation plans, this system was then evaluated in terms of impacts from climate hazards. The results indicated that Malmö’s current energy plans would expose a large share of their energy infrastructure to risk of damage from climate hazards. Thus, the vulnerability of the optimised energy system is indeed heightened when disregarding climate change impacts in the planning phase. If climate change and energy transition strategies are developed conjointly, urban energy system resilience could likely be increased significantly.