Electronic Theses and Dissertations (Masters/MBA)

Permanent URI for this collectionhttps://hdl.handle.net/10539/37942

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Subject: search.filters.subject.Climate change

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Now showing 1 - 6 of 6
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    Hydroponic farming for saffron cultivation in South Africa
    (University of the Witwatersrand, Johannesburg, 2024) Smit, Johan
    In South Africa, saffron has exclusively been cultivated using traditional farming methods. Although farmers face an increasing range of challenges and uncertainties, hydroponic farming offers an opportunity to alleviate many of these challenges, while simultaneously increasing output and reducing input expenses. The primary objective of the planned business venture was to investigate the possibility for hydroponic saffron farming in South Africa. The study focused on the development of a hydroponic system to cultivate saffron, aiming to mitigate the daily difficulties and risks faced by conventional farmers. The study adopted a qualitative exploratory research approach. The study gathered substantial information through interviews with farmers in both the traditional saffron and non-saffron hydroponic industries. Interviewing farmers provided insights into the perspectives of persons involved in both the traditional saffron industry and the non-saffron hydroponic growing sector. Three hydroponic cultivators and one saffron farmer were interviewed face-face. Another Saffron farmer was interviewed telephonically. The study examined the necessary requirements for hydroponic saffron cultivation in South Africa, covering technical factors for saffron cultivation, operational prerequisites, financials, market analysis, and challenges. The research findings highlighted the significance of hydroponic systems within an overall context. The main driving force for the transition from traditional farming to hydroponics was climate change among the participants. An essential challenge in hydroponic saffron growing is its relatively lower profitability compared to other crops like herbs, lettuce, and tomatoes. Including the concept of opportunity cost into the breakeven analysis will lead to a reduced repayment period, hence justifying the concept of saffron cultivation with a hydroponic system. In conclusion, cultivating saffron with hydroponics is a sustainable solution when considering opportunity costs due to the value of the spice, and the increasing uncertainty of climate change affecting output.
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    Corporate Entrepreneurship and Environmental Sustainability in South Africa’s Chemicals Sector
    (University of the Witwatersrand, Johannesburg, 2023) Ntshani, Itukiseng; Pooe, Kagiso (TK)
    Companies in the South African chemicals industry are under pressure to reduce greenhouse gas emissions from their operations while ensuring job preservation andvalue creation for all their stakeholders. Greenhouse gases primarily emanate from burning and processing fossil fuels like crude oil and natural gas. Over 90% of the feedstock for chemical production is obtained from fossil fuels (IEA, 2018), which is not environmentally sustainable. Literature suggests that applying the concept of corporate entrepreneurship can play a vital role in developing solutions to enhance a company’s economic, environmental, and social outcomes (Aparicio et al., 2020). Despite this suggestion, the amount of research done on the application of corporate entrepreneurship to address environmental sustainability challenges is limited, especially in the South African context. This study applies a qualitative research methodology, using a case study research method to investigate if corporate entrepreneurship can address environmental sustainability challenges in South Africa’s chemicals manufacturing sector. Secondary data on companies in South Africa’s chemicals manufacturing value chain was obtained from various digital platforms and triangulated with primary data from interviews to conduct this research. Interview participants included individuals from environmental conservation NGOs and government agencies. The collected data was analyzed in ATLAS.ti through coding and visualization techniques. The results indicate that companies in South Africa’s chemicals manufacturing sector are applying elements of corporate entrepreneurship theory to develop strategies to address environmental sustainability challenges. Individuals from environmental conservation NGOs and government agencies believe corporate entrepreneurship can effectively address environmental sustainability challenges in the chemical manufacturing sector. Most strategies, plans, and projects announced by the companies are yet to be implemented. Therefore, it is yet to be confirmed if these strategies will effectively address the environmental sustainability challenges
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    Perceptions of energy efficiency consequences of implementation of ISO 50001 in South Africa’s pulp and paper industry
    (University of the Witwatersrand, Johannesburg, 2023) Kapp, Juanita; Hildebrandt, Diane
    With loadshedding taking place daily, often more than once a day, businesses suffer financial losses (Maphumulo, 2021). Research findings revealed that SA is only 38% transition ready towards energy efficiency (World Economic Forum, 2020). Adopting and implementing the energy efficiency option holds various benefits and might even create economies of scale for businesses if understood and implemented correctly. Environmental strategies ensuring an increase in efficiency and a decrease in risks to the environment are known characteristics of resource efficiency and cleaner production. The United Nations introduced 17 sustainable development goals (SDGs). Goal 7 refers to affordable and clean energy, which is a topic directly impacted by this research. Other SDGs included in this research are Goal 6 clean water and sanitation; Goal 8 economic growth; Goal 9 industry, innovation, and infrastructure; Goal 12 responsible consumption and production; and Goal 13 climate change. The implementation and maintenance of ISO 50001 serves as a central focus point, although other frameworks and models that could be used for an EES will also be referenced. Benefits and motivators for the transition towards energy efficiency will also be discussed. Another factor highlighted is the geopolitical implications that SA faces and how to better position the country to become more transition ready.
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    Factors influencing the adoption of Green Technology by individual consumers in South Africa
    (University of the Witwatersrand, Johannesburg, 2023) Jainarain, Rowenta
    The effects of climate change are becoming more evident, across the world. It is imperative that humans act as a collective and start immediately, to change their modes and means of operating activities that add to greenhouse gas emissions and global warming. The United Nations (UN) developed the 17 Sustainability Development Goals (SDGs), to be achieved by the year 2030, with SDG 13, Climate Action, being one of them. Apart from companies and industries adding to greenhouse gas emissions, a substantial amount of greenhouse gases are directly and indirectly attributed to the individual consumers’ activity. SDG 17 then comes into play, being, “Partnerships for goals”, whereby this study focuses on the part that individual consumers’ have in the case against climate change. Consumers use electricity in their everyday lives and electricity generation is usually from fossil fuel powered stations, which significantly contribute to greenhouse gas emissions. An alternative would be for consumers, to adopt green technology, in the form of renewable energy, such as solar panels and solar water heaters. This study took a quantitative approach, to assess the factors that influence the adoption of green technology in South Africa. Primary data was collected from 102 respondents via a survey questionnaire, with 87 valid responses after data cleaning. Factor analysis was employed to ascertain the factors that influenced adoption. Multiple regression was used to test the hypotheses developed from the literature survey as well as to determine which factor influenced adoption most. The theory of planned behaviour was the model and framework against which, intention to adopt green technology was tested. The literature survey study found that awareness, self efficacy, ease of access, belief of benefits, cost perception, risk perception, environmental concern, aesthetics and social norms have an impact on intention to adopt. The regression analysis in the study found that awareness, belief of benefits and cost perception had an influence on the intention to adopt green technology and that awareness was the most influential factor. There is very little literature on factors that influence adoption in the South African context, hence this study aims to fill that gap and assist governments, sustainable development organisations and societies, with practical recommendations to influence vi the uptake of green technology in the form of renewable energy in South Africa as well as recommendations for future research
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    Climate Mitigation Disclosure on Financial Performance and Market Stability: Evidence from South Africa
    (University of the Witwatersrand, Johannesburg, 2023) Ramafoko, Mokate George; Alovokpinhou, Sedjro Aaron
    This paper investigates the impact of climate risk disclosure in South Africa on the market stability and performance. The main proxies of climate risk used in the study are greenhouse gas emission intensity and environmental performance rating. The study uses a difference-in-difference method to isolate the effect of climate risk disclosure on a portfolio of highly exposed firms. Firstly, the results show that high greenhouse gas emitting firms have lower returns and higher volatility before and after controlling for time effects. However, the difference-in-difference coefficient from the analysis shows evidence of a weak correlation at a 10% significance level between disclosure of climate risk on the market performance of high greenhouse gas emitting firms relative to low emitters. Secondly, the study could not establish evidence that stocks of high greenhouse gas emitting firms experience higher volatility after the disclosure of their emission inventory. Results of the impact of environmental ratings on stock returns after adjusting for the time effect show that firms rated by the Climate Disclosure Project have lower returns than highly rated firms. However, the difference-in-difference coefficient is weak at a 10% significance level. The results are inconsistent with previous studies in developed countries where a strong correlation between climate risk and stock performance has been established. The findings from the study highlight that either climate risk is already factored into the stock prices, or the risk is viewed as immaterial to have an immediate impact on the equity market. The study addresses the existing literature gap on the effect of climate risk on developing countries' market stability and performance. Future work is required considering the evolving global focus on climate risk as a priority and the potential financial impact on firms’ sustainability
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    The introduction of renewable energy into the South African energy mix without affecting the socio-economic environment of the country
    (University of the Witwatersrand, Johannesburg, 2022-12) Baepi, Marvin; Mondi, L.
    There is no doubt that climate change is a reality, even though there is a huge disagreement on what course it. In response to this reality, in 2011 South Africa introduced the National Climate Change Response Policy White Paper (NCCR. 2011; Lukey, 2020). The policy was a mitigation response to address Greenhouse gases (GHG) emissions. It had short, medium and long term goals to stop the increasing GHG emission by latest 2025 and stabilisestabilize it by 2035 and start reducing from 2035 – 2050 respectively. These policies among other things, aim to eradicate or reduce dependency on electricity generation using coal. They also aim to encourage businesses to reduce CO2 emissions. However, instead of businesses reducing CO2 emissions , they pass through the penalties that the government impose on them for emitting CO2 during their production processes to their customers. South African has high unemployment rate and low skilled labour contingent, especially in the coal mining industry. The government cannot afford a fast pace eradication of coal fired power generation as this will deepen unemployment in the coal industry, especially in the Witbank area. The deployment of renewable energy requires highly skilled individuals for construction, operation and maintenance. The introduction of renewable energy at its current form, where Eskom is a single buyer is very expensive for South Africans at large. This is because Eskom applies a pass through method for buying electricity that is more expensive than their current fleet of electricity generation plants. The industry needs to be deregulated in order to achieve a fair and workable plan for South Africans