2.2 Economic valuation: towards ecological economics The blue whale could have supplied indefinitely a sustainable yield of 6000 individuals a year. This is one of the earliest references to sustainability in the literature, taken from the 1971 edition of the science journal Nature (cited in Senge et al., 2006, p. 45). Here, the blue whale is given instrumental value – a means of measuring not the survival of the blue whale for its intrinsic v
2.1 Accounting for the consequences of environmental harm The ethical tradition of consequentialism informs not only what matters from the perspective of caring for the environment, but also what matters from the perspective of accountability towards it. In eighteenth-century Europe, the actual environmental consequences of rapid economic development, triggered by the industrial revolutions taking place at that time, prompted an increasing concern for accountability. The most evident expression of this came with ideas of sustainable development
Learning outcomes By the end of this unit you should be able to: describe environmental matters regarding obligation and entitlements from a ‘caring’ perspective; appreciate the significance of environmental consequentialist ethics in conversations around developing care; identify and compare formal and less formal expressions of environmental responsibility; understand ‘accountability’ in the context of environmental issues; ide
2.1 Conversing with environment Consider a situation involving what might be regarded as eco-social collapse. For example, the trigger of global warming (caused primarily by use of fossil fuels in developed countries) has encouraged the rapid development of biofuel agriculture through grants from rich countries in the global North to Brazil and other tropical countries in the global South. This has generated both ecological problems (deforestation, pesticide pollution, etc.) and socio-economic problems – particularly with
6 Further reading The models being used in research take such simple energy flows and increase the ‘granularity’ of the components used, to build complex time sequences. You may like to see Information Sheet 8 at the website of the Climatic Research Unit for a summary of how these have developed. Click on 'View document' to see charts mentioned in the activity below 2 A 4.6 billion-year history Climate change is a natural process of warming and cooling that has occurred all through the Earth's history. Throughout geological time there have been ‘hot-house’ periods and ice ages. In order to understand the current situation, it is necessary to have some sense of context and perspective, from historical and geological time-scales. The document below shows a chart showing a generalised temperature history of the Earth. Click on 'View document' to see the chart Learning outcomes After studying this unit you should be able to: Define and use, or recognize definitions and applications of, each of the terms in bold in the text. Understand the complexity of the interdependence between organisms and their environment. Describe some of the consequences for health of pollution. Explain why it is difficult to gain international agreements to secure biodiversity and reduce pollution. Acknowledgements The material acknowledged below is Proprietary, used under licence and not subject to Creative Commons licensing (see terms and conditions). Grateful acknowledgement is made to the following: Figure 1/Unit Image © John Isaac/Still Pictures Figure 2 © Ian Hodgson/Reuters/Popperfoto Figure 3 © PA Photos Figure 4 © Accent Alaska Figure 5 © Tony Bennets/Lonely Planet Images Figure 6 © Bryan & Cherry Alexander Photography 5.1 Food preservation and the development of refrigeration Most societies have had traditional methods of preserving food: drying, baking, pickling, salting, smoking, the use of sugar, and in cold climates, freezing or chilling, with the use of ice houses in the summer. These techniques were usually carried out at a local level, which meant that most perishable food was consumed near to where it was produced, and any food processing was usually small-scale and localised. Cattle and livestock, for example, were moved ‘on the hoof’ from their pastu 2.2 We are part of nature Take a few minutes to look around at your surroundings before you read on. What do you see? Obviously this depends on where you are at the moment: at home, at work, or perhaps travelling in between, or maybe you have the misfortune to be laid up in hospital. Possibly like me you are at home. I am fortunate to have a study where I do much of my writing and you won't be surprised to hear that I'm looking at a computer screen at the moment. What else can I see? Books and bookshelves, furniture o 5.7 Relating individual rights to state sovereignty The fourth set of problems is really a specific example of the third set and relates to the ways in which individual rights relate to state sovereignty. The Millennium Conference of the UN in 2000 endorsed the need for people-centred changes to the institution and renounced its previous ‘state-centred’ structure. The human-centred logic of rights regards human rights as a value which places legitimate constraints upon the politics of national self-interest and interstate competition. Chan 5.4 The influence of the Western perspective With regard to the first set of problems – that the rights discourse is not universal but is deeply informed by a Western perspective – it is striking that many actors and commentators on the international stage now frame their arguments and assertions in terms of the language of rights and justice. Yet we need to ask to what extent this language of rights and justice really underpins shared understandings and values. There is a strong case for saying that if there are shared understandin Introduction This unit is about rights and rights claims, and the idea of implementing justice in the international sphere based on the concept of rights. It is agreed by most people that ‘rights are a good thing’ and in many respects they are. However, this unit deliberately takes a critical view. It seeks to examine closely why rights are a good thing and highlights some of the problems associated with rights. In this way, we hope that the sense in which rights are still, ultimately, ‘a good thing 5 Conclusion The issue of climate change draws attention to the power of human activity to transform the planet in its entirety, and it is brought into sharp focus by the predicament of low-lying islands like Tuvalu. As we have seen in this unit, the issue of rising sea level and other potential impacts of changing global climate also point to the transformations in the physical world that occur even without human influence. Oceanic islands provide a particularly cogent reminder that the living things wit 4.1 When climate changes We have seen that human-induced climate change poses a challenge for people who live on islands. Such changing patterns and extremes of climate also put pressure on the other living things that are part of the make-up of island territories. However, long before human beings became aware that they could transform the flows that constitute climate, they and other species were already taking advantage of these same flows to help create the very territories that are now under threat. But have the 2 The road to Doha The WTO was created by the eighth in a series of multilateral trade negotiations that have taken place since the signing in 1947 of the General Agreement on Tariffs and Trade (GATT). Multilateral trade negotiations take place between many countries simultaneously. (Bilateral negotiations are negotiations between pairs of countries.) The GATT was designed to prevent a repetition of the experience of the 1930s, when individual countries had tried to claw their way out of the widespread u 5.3 Order and chaos How can we explain a sudden switch of behaviour at a particular temperature? There must be two competing influences (say X and Y) that depend differently on temperature. Figure 23 indicates how a unique temperature (a so-called critical temperature, Tc) arises, 4.3.2 Competing processes Let's look graphically at the way the rate of a thermally activated process changes with temperature. Figure 16 shows two rates with different activation energies of 1.0 and 0.5 eV – which curve is which? 6.4 Blogs The founder of Technorati claims that the number of ‘blogs’ doubles every five months and that the creation rate is approaching two per second. One estimate I read in July 2010 put the number at 400 million blogs. Because these online diaries offer instant publishing opportunities, you potentially have access to a wealth of knowledge from commentators and experts (if they blog) in a wide ra 6.3 Mailing lists and newsgroups Mailing or discussion lists are email-based discussion groups. When you send an email to a mailing list address, it is sent automatically to all the other members of the list. The majority of academic-related mailing lists in the UK are maintained by JISCMail. You will find details of joining these mailing lists on the JISCMailJ website. Mailing lists
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