The Proposed Amendment to the Definition of “Veldfire” as Articulated by The National Veld and Forest Fire Amendment Bill [B22–2016]

Obiter ◽  
2020 ◽  
Vol 41 (1) ◽  
pp. 168-174
Author(s):  
Glenwin Sefela

It goes without saying that fire is an important factor in the development of humankind. When humans first discovered fire, it instantly became their best friend. Fire enabled early humans to light up the dark, indulge in cooked meals and provide warmth for their bodies and homes. However, even before they figured out how to manually reproduce fire, it existed in nature. Fire, and specifically “veldfire”, exists naturally and does not need the agency of man.Today, severe drought, specific weather conditions (for example, high temperatures, high wind speed and low rainfall combine to induce favourable veldfire conditions) and an array of other factors (such as topography, land size, fuel type, population density (human influence) and climate change) all increase the possibility of a veldfire occurring. Owing to these contributing factors, fire has become both friend and, in some instances, deadly foe. For example, fire is used as a friendly management tool to prevent or lower the risk of veldfire, while an example of fire as foe are what are now commonly known as the “Knysna Fires” of 2017, which remain a vivid reminder of what uncontrolled fires can do. This type of fire not only damaged social, economic and environmental assets, it also quickly escalated into an emergency incident. An “incident” is defined in s 30(a) of the National Environmental Management Act 107 of 1998 to mean “an unexpected sudden occurrence, including a major emission, fire or explosion leading to serious danger to the public or potentially serious pollution of or detriment to the environment, whether immediate or delayed.” The Knysna Fires are a classic example of why managing veldfires in an integrated way is important within a South African context and are one of the main reasons for the promulgation of the National Veld and Forest Fire Act (101 of 1998) (NV&FFA) (s 3).Regrettably, however, the NV&FFA defines neither “veld” nor “veldfire”. Instead, it defines “fire” to “include a veldfire” and goes on inadequately to explain that “veldfire” means “veld, forest and mountain fire”. Taking the above reasoning into consideration, arguably one of the main challenges of the NV&FFA is the strict interpretation and inadequacy of the term “veldfire”. In refreshing contrast, however, the National Veld and Forest Fire Amendment Bill (the Bill) aims to provide more meaning to the term “veldfire”. The purpose of this note is therefore a critical analysis of the proposed amendment to the definition of veldfire by: providing legislative background to the term “veldfire”; investigating the way the courts of the past have interpreted the term legislative background and consequently “veldfire”; explaining why the proposal to amend the term “veldfire” is important; briefly looking at how other countries define their equivalent of South Africa’s “veldfire”; and, lastly, by providing remarks and suggestions.

2021 ◽  
Vol 13 (4) ◽  
pp. 1972
Author(s):  
Jeremy Wright ◽  
Jeremy Lytle ◽  
Devon Santillo ◽  
Luzalen Marcos ◽  
Kristiina Valter Mai

Urban densification and climate change are creating a multitude of issues for cities around the globe. Contributing factors include increased impervious surfaces that result in poor stormwater management, rising urban temperatures, poor air quality, and a lack of available green space. In the context of volatile weather, there are growing concerns regarding the effects of increased intense rainfalls and how they affect highly populated areas. Green roofs are becoming a stormwater management tool, occupying a growing area of urban roof space in many developed cities. In addition to the water-centric approach to the implementation of green roofs, these systems offer a multitude of benefits across the urban water–energy–food nexus. This paper provides insight to green roof systems available that can be utilized as tools to mitigate the effects of climate change in urbanized areas. A new array of green roof testing modules is presented along with research methods employed to address current issues related to food, energy and water performance optimization. Rainwater runoff after three rain events was observed to be reduced commensurate with the presence of a blue roof retention membrane in the testbed, the growing media depth and type, as well as the productive nature of the plants in the testbed. Preliminary observations indicate that more productive green roof systems may have increasingly positive benefits across the water–energy–food nexus in dense urban areas that are vulnerable to climate disruption.


2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Jindrich Spicka ◽  
Jiri Hnilica

The paper deals with weather derivatives as the potentially effective risk management tool for agricultural enterprises seeking to mitigate their income exposure to variations in weather conditions. Design and valuation of the weather derivatives is an interdisciplinary approach covering agrometeorology, statistics, mathematical modeling, and financial and risk management. This paper first offers an overview of data sources and then methods of design and valuation of weather derivatives at the regional level. The accompanied case study focuses on cultivation of cereals (wheat and barley) in the Czech Republic. However, its generalizability is straightforward. The analysis of key growing phases of cereals is based on regression analysis using weather indices as the independent variables and crop yields as dependent variables. With the bootstrap tool, the burn analysis is considered as useful tool for estimating uncertainty about the payoff, option price, and statistics of probability distribution of revenues. The results show that the spatial and production basis risks reduce the efficiency of the weather derivatives. Finally, the potential for expansion of weather derivatives remains in the low income countries of Africa and Asia with systemic weather risk.


Author(s):  
Lauren Auer Lopes ◽  
Elizabeth Bernardino ◽  
Karla Crozeta ◽  
Paulo Ricardo Bittencourt Guimarães

Abstract Objective: to identify the factors related to the quality of umbilical cord and placental blood specimens, and define best practices for their collection in a government bank of umbilical cord and placental blood. Method: this was a descriptive study, quantitative approach, performed at a government umbilical cord and placental blood bank, in two steps: 1) verification of the obstetric, neonatal and operational factors, using a specific tool for gathering data as non-participant observers; 2) definition of best practices by grouping non-conformities observed before, during and after blood collection. The data was analyzed using descriptive statistics and the following statistical software: Statistica(r) and R(r). Results: while there was a correlation with obstetrical and neonatal factors, there was a larger correlation with operational factors, resulting in the need to adjust the professional practices of the nursing staff and obstetrical team involved in collecting this type of blood. Based on these non-conformities we defined best practices for nurses before, during and after blood collection. Conclusion: the best practices defined in this study are an important management tool for the work of nurses in obtaining blood specimens of high cell quality.


2016 ◽  
Vol 18 (4) ◽  
pp. 721-727 ◽  

<p>Odour emissions from liquid waste treatment plants (LWTPs) generally cause significant effects on the environment in terms of nuisance to exposed population. The particular and complex nature of the mixture of the volatile substances, its variability in time and the strong influence of the atmospheric conditions, are the elements that delayed their regulation and relative management.</p> <p>Limited data are available in the technical and scientific literature, regarding the odour emissions characterization from liquid waste treatment plants. Moreover there isn’t a common strategy from the different European Countries in the regulation of their emissions.</p> <p>Different methods can be used to measure odour emissions from environmental engineering plants, and currently, in Europe, the most used techniques for odour emissions characterization and quantification is the dynamic olfactometry, according to EN 13725:2003.</p> <p>The aim of this study is the characterization of the odour emissions from different liquid waste treatment plants (LWTPs), trough a case study of two large real LWTPs, in order to identify the principal odour sources and to define their related odour emissions.</p> <p>Odour Concentration Index (OCI) is proposed as a useful and simply odour management tool for the identification of the priority actions necessary to identify and control the main odorous sources. Relationship between the measured odour emissions and the types of treated liquid waste (identified in terms of EWC code, COD and NH4<sup>+</sup>) is also discussed.</p> <p>Results show that the influent collection tank is the source with the highest detected odour emissions. OCI results are useful for the definition of a clear priority action for odour control, similar for both investigated plants. Between the characterized types of liquid waste treated by LWTPs the leachate (EWC 190703) show the maximum odour emissions.</p>


Author(s):  
Ray G. Motsi ◽  
Maake J. Masango

The article attempted to analyse critically the definition of trauma as it is used in the Western medical and psychiatry contexts in order to come up with an appropriate African definition. This was undertaken with the view to demonstrate that the Western worldview is different from the African worldview. Superimposing solutions or providing pre-packed answers to unique African problems will lead only to re-traumatisation, whereas cultural sensitivity and the right diagnosis will lead to the correct treatment. The driving force behind this article was therefore to aim to be relevant, effective and contextual in all African-based pastoral care.


Author(s):  
James R. Fleming

The debate over climate change, both from natural causes and human activity, is not new. Although the Baron C.-L. de Montesquieu is undoubtedly the best known Enlightenment thinker on the topic of climatic determinism, others, notably the Abbé Du Bos, David Hume, and Thomas Jefferson, observed that climatic changes exerted a direct influence on individuals and society and that human agency was directly involved in changing the climate. Climate—from the Greek term klima, meaning slope or inclination—was originally thought to depend only on the height of the Sun above the horizon, a function of the latitude. A second tradition, traceable to Aristotle, linked the quality of the air (and thus the climate) to the vapors and exhalations of a country. The Hippocratic tradition further linked climate to health and national character. As late as 1779, the Encyclopdédie of Denis Diderot and Jean le Rond D’Alembert defined “climat” geographically, as a “portion or zone of the surface of the Earth, enclosed within two circles parallel to the equator,” in which the longest day of the year differs in length on its northern and southern boundaries by some quantity of time, for example one-half hour. The article goes on to mention Montesquieu’s position on “l’influence du climat sur les mœurs, le charactère, et les loix des peuples.” The second definition of climate provided by the Encyclopdédie was medical, identified primarily as the temperature of a region and explicated through its effects on the health and well-being of the inhabitants. The idea that climate influenced culture was derived in part from the writings of ancient and medieval philosophers, geographers, and historians, including the works of Hippocrates, Albertus Magnus, and Jean Bodin. With no established science of climatology, Enlightenment thinkers apprehended climate and its changes primarily in a literary way. They compared the ancient writings to recent weather conditions, linked the rise and fall of creative historical eras to changes in climate, and promoted a brand of climatic determinism based on geographic location and the quality of the air.


Author(s):  
Gad Vitner

Bill of Services (BOS) is a novel management tool designed to support service organizations in developing their services and planning resources to satisfy management's target service level. This paper presents a methodology for configuration of the BOS in a manner similar to configuration of the Bill of Materials (BOM) in a manufacturing organization. Definition of the BOS enables management to calculate the capacity of the resources needed to satisfy service demand and support the cost process of any service category in the organization. The BOS may also support management during the phase of negotiations with potential customers by testing various service alternatives. The BOS assists management in the day-to-day planning and control of activities, and facilitates a professional management infrastructure in service organizations. The paper presents a detailed example of a hotel BOS and elaborates the advantages of using this management tool.


Author(s):  
Roberta Guglielmetti Mugion ◽  
Gabriella Arcese ◽  
Martina Toni ◽  
Luca Silvestri

The life cycle sustainability assessment based on Life Cycle Thinking is currently considered the most crucial paradigm that includes three kinds of sustainability variables. Life cycle management (LCM) is the most holistic approach in promoting sustainable value creation, embedding the social, economic, and environmental dimensions as a management tool. LCM is mainly applied in the manufacturing and products chain, whereas it is understudied in the service industry. This chapter proposes the development of the LCM general framework and the definition of indicators for the assessment of sustainability in the urban shared mobility. The research framework has been tested in the transportation sector focusing on car sharing context.


2012 ◽  
Vol 12 (8) ◽  
pp. 2591-2601 ◽  
Author(s):  
H. M. Mäkelä ◽  
M. Laapas ◽  
A. Venäläinen

Abstract. Climate variation and change influence several ecosystem components including forest fires. To examine long-term temporal variations of forest fire danger, a fire danger day (FDD) model was developed. Using mean temperature and total precipitation of the Finnish wildfire season (June–August), the model describes the climatological preconditions of fire occurrence and gives the number of fire danger days during the same time period. The performance of the model varied between different regions in Finland being best in south and west. In the study period 1908–2011, the year-to-year variation of FDD was large and no significant increasing or decreasing tendencies could be found. Negative slopes of linear regression lines for FDD could be explained by the simultaneous, mostly not significant increases in precipitation. Years with the largest wildfires did not stand out from the FDD time series. This indicates that intra-seasonal variations of FDD enable occurrence of large-scale fires, despite the whole season's fire danger is on an average level. Based on available monthly climate data, it is possible to estimate the general fire conditions of a summer. However, more detailed input data about weather conditions, land use, prevailing forestry conventions and socio-economical factors would be needed to gain more specific information about a season's fire risk.


2020 ◽  
Author(s):  
Patrik Vestin ◽  
Per Weslien ◽  
Marcus Wallin ◽  
David Bastviken ◽  
Natascha Kljun ◽  
...  

&lt;p&gt;We present the Net Ecosystem Carbon Balance (NECB) of a Northern mire ecosystem for the period 2016-2019. The Mycklemossen peatland is located in the hemi-boreal region in the Southwestern part of Sweden and is classified as a fen with bog-like vegetation. The NECB was determined from eddy covariance (EC) measurements of carbon dioxide (CO&lt;sub&gt;2&lt;/sub&gt;) and methane (CH&lt;sub&gt;4&lt;/sub&gt;) and continuous water discharge measurements with biweekly measurements of dissolved organic carbon (DOC), dissolved inorganic carbon (DIC) and dissolved CH&lt;sub&gt;4&lt;/sub&gt;. &lt;br&gt;We focus on the carbon dynamics of the Mycklemossen ecosystem during summer droughts and on its recovery during normal years. During 2016-2018, the annual precipitation was lower than the 30-year average while 2019 was a normal year in terms of weather conditions. 2018 sticks out as an extreme year with a severe drought and unusually high air temperature at Mycklemossen, as was the case in much of Northern and Central Europe.&lt;br&gt;The EC results indicate that Mycklemossen lost carbon during 2016-2018. While CH&lt;sub&gt;4&lt;/sub&gt; emissions decreased, the mire became a strong source of CO&lt;sub&gt;2&lt;/sub&gt; these years, especially 2018. There were also large losses of DOC during this period, which were further enhanced during 2019.&lt;/p&gt;


Sign in / Sign up

Export Citation Format

Share Document