Access to abstract restricted until July 21, 2015. / Asscess to dissertation restricted until July 21, 2015 / Department of Natural Resources and Environmental Management

186 p. / Title page, contents and abstract only. The complete thesis in print form is available from the University Library. / Thesis (Ph.D.) University of Adelaide, Dept. of Agronomy, 1989

M.Tech. (Operations Management) / The field of study is of a multi-disciplinary nature relating to chemistry, microbiology, electrical engineering, soil technology and legislation dealing with different aspects of soil, water and environmental contamination in South Africa The relevant basic principles involved as applicable to the problem being researched are discussed in the dissertation. The reader is introduced to the statement ofthe problem in Chapter 1. A study was carried out of research projects which were conducted elsewhere in the world with regard to oil pollution and the remediation procedures followed. This research project has focused on a problem which revolved around the pollution of soil from insulating oil spillages. Insulating oil is used in electrical equipment, such as transformers, tap changers and other items in the distribution of electricity throughout South Africa. Insulating oils perform three functions namely, a cooling function, acts as an insulator and as an indicator ofthe condition ofa transformer. The aim ofthe research was to develop methods and techniques, under the South African climatic conditions, to clean insulating oil polluted soil cost effectively. Oil in its various forms and derivatives is part of our modem society. Scientists are continuously designing new applications for various types of lubricants without the knowledge of the impact the product might have on the environment. When a pollution problem becomes intolerable, then a solution is investigated. Then man, with its superior brain power, goes to the simplest life on earth to solve his pollution problem. Various products and applications were investigated theoretically and also in practice. Case studies were investigated to determine the success rate of different products and applications. Laboratory tests were carried out to determine the true results of some of the products. The laboratory results were tested in practice on two test sites to confirm the results. The consequence of the research project has indicated that excellent results have been achieved. The results have indicated that insulating oil polluted soil can be cleaned in a...

Striking the balance between managing a successful organisation and paying attention to environmental sustainability requires excellent leadership. There are several benefits associated with being an environmentally sustainable organisation such as improved image (reputation and brand), increased customer loyalty, improved bottom line, attracting skilled experienced staff and improving the relationships with local communities. The purpose of this study was to explore and describe the change leadership qualities needed to drive environmental sustainability in the South African landscape to reduce global warming reduction. The qualitative paradigm was utilised to investigate the change leadership qualities needed to affect create environmental sustainability, with focus on global warming reduction actions in the workplace. A literature review was conducted on environmental sustainability, change leadership, and leadership qualities necessary to effect change. A survey was conducted among 13 participants using an interview schedule in the Gauteng, Western and Eastern Cape provinces of South Africa in both private and public organisations in various business sectors. Data was collected in 2013 over a four–month period by conducting face-to-face, telephonic and email interviews. The returned questionnaires were subjected to constant comparative, content and grounded theory analysis. Biographical profiles of the respondents and participating organisations were presented as case studies. Trustworthiness of the data was ascertained using data triangulation. Data was analysed in terms of the issues of environmental sustainability and change leadership. In-depth analyses were also conducted by means of provincial, business and employment sector comparisons. It was found that environmental sustainability was being addressed by the selected organisations, specifically relating to GHG emissions, energy and water saving actions. Change leaders should implement specific environmental sustainability strategies to assist in the reduction of global warming, create awareness, focus on employee involvement, report on their sustainability results and put and incentives in place to encourage environmental sustainability. In order to effect such changes, change leaders need to set targets to measure their sustainability progress. Green campaigns should be conducted internally to educate employees on the effects of global warming, and externally to inform the public about their commitment to environmental sustainability and to advise the public on courses of actions to assist in the quest to reduce global warming. It would be advisable for organisations to appoint a specific environmental sustainability team to drive these efforts. It was found that in order to bring about such changes, certain qualities were needed by change leaders to enable them to act as a change agents. Associated change leadership styles were also addressed. Change leaders should be knowledgeable in order to effectively communicate the importance of environmental sustainability. They should adopt a blend of leadership styles to drive environmental sustainability depending on the extent of change actions planned. Organisations should identify, appoint and mentor female leaders as they have the nurturing qualities that could successfully drive environmental sustainability actions. Change leaders should also preferably be personally involved in environmental sustainability as their personal values together with their job role at top leadership level could contribute towards successful implementation of environmental sustainability actions in the workplace. The study has provided general guidelines on the environmental sustainability issues necessary to address global warming reduction as well as guidelines on the change leaders qualities necessary to drive environmental sustainability actions in the workplace.

A project report submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in the partial fulfilment of the requirement for the Degree of Master of Science in Engineering / The impact of TMMM on Environmental Engineering is pervasive in all aspects. More critical aspects have been evaluated to quantify their impact on air and refrigeration of a typical deep, hot gold mine. ( abbreviation abstract) / Andrew Chakane 2018

M.Sc., Faculty of Science, University of the Witwatersrand, 2011 / Global climate change, often referred to as „global warming‟ is possibly one of the most serious environmental challenges facing the world this century (DEAT, 2004; IPCC, 2007). There have been several studies (e.g. Viner and Agnew, 1999; Higham and Hall, 2005; IPCC, 2007; Midgley et al., 2008) on the potential impacts of climate change on the tourism sector and the likely effects are shown to be extremely wide ranging and may have far-reaching consequences for the tourism sector in many regions and areas of the world. From a review of the literature it was evident that there was limited literature on the response to climate change by the tourism industry in terms of mitigation, adaptation and long- term strategic planning to manage future anticipated climate change impacts. Given this background, this research explores the tourism industry with regard to game and nature reserves in South Africa and probes the perceptions of climate change amongst park managers and tourism operators to understand their awareness regarding the projected impacts of climate change. Mitigation and adaptation strategies that were in place or being developed in the management of the game and nature reserves are identified and examined. Challenges that were experienced by the tourism managers/operators in promoting effective mitigation and adaptation strategies in the nature based tourism sector in South Africa are highlighted and discussed and recommendations are provided. Purposeful sampling was employed in the research and the stakeholders were identified according to their important roles in the South African Tourism Industry with regard to game and nature reserve management. These included the Department of Environmental Affairs and Tourism, South African National Parks (SANParks), South African National Botanical Institute (SANBI) and the Provincial Park Managers which comprises the Eastern Cape Parks, Gauteng Department of Agriculture and Rural Development (GDARD), Ezemvelo KZN Wildlife, Limpopo Tourism and Parks Board, Mpumalanga Parks Board, North West Parks and Tourism Board and Cape Nature. The research data was collected using open-ended questionnaires and interviews with the stakeholders. Results of this research showed that there was a basic understanding of climate change and its associated impacts on tourism consistent with what is being established in the scientific literature. Despite this awareness among relevant stakeholders, there was however not much formal long-term strategic planning or mitigation and adaptation plans in place to manage or „manage‟ the suggested projected impacts of climate change on the tourism industry. The research results also highlighted many challenges experienced by the nature- based tourism sector.

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Dissertation made openly available per email from author, 6-2-2016.