Search results

Every year, tens of millions of the 1.4 billion cars on the world’s roads are decommissioned. While the ferrous and other metals that constitute about 75% of a vehicle by weight can be readily and profitably recycled, the remaining mix of plastics, glass, composites, complex materials, fragments and contaminants are mainly destined for landfill as automotive shredder residue (ASR). For every car, approximately 100–200 kg of ASR is disposed of in landfill, posing a growing technical and environmental challenge worldwide. The recovery of the ASR for high-end application is the focus of this study, aiming to optimise the use of these valuable resources and minimise the extractive pressure for raw materials, a future green manufacturing, contributing towards a zero waste circular economy. As the dissolution of carbon into iron is a key step in the manufacture of iron-carbon alloys, the feasibility of utilizing the waste polymers within ASR as sources of carbon in different areas of pyrometallurgical processing was investigated. Polypropylene and rubber, in a blend with metallurgical coke, were used as carbonaceous substrates and the slag-foaming phenomenon was investigated via the sessile drop technique in an argon environment at 1,550°C. The results indicated the rubber/coke blend achieved significantly better foaming behaviour, and the PP/coke blend exhibited a moderate improvement in slag foaming, in comparison to 100% metallurgical coke. The overall results indicated the incorporation of ASR had significant improvement in foaminess behaviour, increasing furnace efficiency.

Introduction – As a financial instrument, tax has always been one of the policy support instruments that governments apply to solve problems. The issue of the environment, on the other hand, is a notion that has gained more importance over the past years and governments struggle to create solutions to environmental problems on the global scale. Climate change is one of the most important parts of this issue. Especially in our modern day, as a result of natural disasters, forest fires and landslides, climate change has become a field in which serious political measures should be taken. Although it has become necessary to implement tax as a tool to decrease carbon emissions and to open new fields for works with less carbon emission, the expected/desired results about carbon emissions have not been obtained throughout the world.

Purpose – The aim of this chapter is to examine carbon taxes, which are the tax applied against climate change, and to draw attention to the multiple policy approach in the face of global environmental problems.

Methodology – This chapter, in which qualitative research method is adopted, has descriptive elements. In this context, an evaluation has been put forward in the light of the data obtained from various reports and scientific articles.

Findings – Though tax is indeed considered as an effective political tool among the precautions to be taken, one-dimensional approach might bring along a deadlock in the solution of this problem. In order to improve this approach and the perception towards the environment across society, it is necessary to include other factors that can play an important role in this process such as non-governmental organisations. Consequently, in order to solve the environmental problems which have occurred as a result of human activities, it is essential to minimise the destruction caused by these human activities (although it is not possible to restore it completely). Therefore, a multi-dimensional policy instead of a one-dimensional policy, an environmentally conscious society and state, and cooperation of policy actors on a global scale are basic elements which can play an important role in the solution of the problem.

There is growing apprehension about climate change and the role played by fossil fuels. Exploration of renewable sources of energy as an alternative to fossil fuels reveals that there is no path forward toward a true green economy that does not have negative environmental side effects. Thus, the improvement of managerial and financial accounting to provide more environmental information and accountability by governmental and nongovernmental institutions is increasingly important in guiding us toward wiser choices. Since the 1970s, the increasing concerns about the environment in the United States have led to improved regulation and more comprehensive environmental reporting requirements and accounting standards. Also, global institutions have been created to foster voluntary reporting of both direct and indirect environmental impacts of their activities by institutions. However, evidence suggests that, while some large global firms have found it useful to engage in sustainability reporting throughout their operations, in general, the US organizational environmental reporting is not strong and is oriented toward the legal minimum when present. If we are to take account of the many direct and indirect ways in which our production choices affect our environment, then our institutions need to play a larger role in informing our choices. Both the Environmental Managerial Accounting Initiative and an enhanced balanced scorecard approach are recommended as frameworks for future efforts; public and private institutions must also include life cycle analysis in decision-making systems in order to enhance their ability to help achieve sustainable economic progress.

This chapter proposes a multiobjective model to design a Closed Loop Supply Chain (CLSC) network. The first objective is to minimize the total cost of the network, while the second objective is to minimize the carbon emission resulting from production, transportation, and disposal processes using carbon cap and carbon tax regularity policies. In the third objective, we maximize the service level of retailers by using maximum covering location as a measure of service level. To model the proposed problem, a physical programming approach is developed. This work contributes to the literature in designing an optimum CLSC network considering the service level objective and product substitution.

This chapter examines SDG 13 which deals with efforts to combat climate change. The chapter begins by outlining the targets related to this goal, the trend towards increased heating of the planet and failures to curtail carbon emissions. This is framed using criminological concepts such as state-corporate crime and carbon criminality. The major concern of the rest of the chapter is to outline a climate action plan. As part of this, it discusses a range of initiatives currently underway intended to pressure governments to take more concerted action around climate change. These include activist interventions and climate litigation. The chapter concludes by exploring the possibilities and obligations of global community action to address the most important issue of our era.

Although fossil fuels have been used to produce energy since approximately 1850, emissions resulting from fossil fuel-based energy production are closely associated with the increase in global mean temperature, which, in turn, has affected the climate. As a result of climate change, ecosystems and humans are already experiencing adverse effects such as prolonged heat waves and extreme droughts. A realistic approach to the mitigation of climate change is the deployment of renewable energy sources; that is, naturally replenishing sources such as wind and sun, which can produce infinite energy with significantly lower emissions, compared to fossil fuels. In order to help students understand the intricate relationship between climate change and energy, this chapter presents significant information and provides exercises which help students practice their knowledge and language skills.

According to a report by Food and Agriculture Organization, total forest area in the world as of 2005 is estimated at 3,952 million hectares (9,766 acres) or 30 percent of total land area (FAO, 2005a). The area of forest is unevenly distributed (FAO, 2005b). At the regional level, South America is the region with the highest percentage of forest cover, followed by Europe and North and Central America. Asia is the region with the lowest percentage of forest cover (FAO, 2005c). The forest environments are changing globally. Climate change is one of the reasons, and it affects world forest management. More attention has been devoted to timber as the major commercial aspect of forests rather than to other noncommercial resource values (Barnard et al., 1985). The purpose of forest management was once as simple as taking timbers, but it is now more complicated. When the forest environments change, the key trends of world forest management must also change. Now, generally speaking, the extent of forest resources refers to an overall maintaining of adequate forest cover and stocking of various forest types and characteristics, and the ultimate aim of monitoring the extent and characteristics of forest resources is to reduce unplanned deforestation, restore and rehabilitate degraded forest landscapes, manage forests sustainably, and evaluate the important function of carbon sequestration by forests, other wooded land, and trees outside forests, thereby contributing to moderating the global climate (FAO, 2005d).

Carbon dioxide emissions are considered to be one of the main culprits in global warming and the Kyoto Protocol specifically targets reductions in carbon dioxide to reduce global warming. Because the fossil burning electric utility plants are the primary industrial source of carbon dioxide emissions, we examine how effective the U.S. electric utility companies have been in reducing carbon dioxide emissions. We evaluate 1998 carbon dioxide emissions in relation to the emissions of the base year of 1990 set by the Kyoto Protocol. We also examine whether adequate disclosures are being made by the utilities to reflect their pollution performance. The findings show that the total amount of carbon dioxide emissions increased by 35% in 1998 compared to 1990, but on a relative basis, they decreased from 205 to 204lbs/MMBTU. Though we detect some support for a positive association between pollution disclosures and pollution emissions, the electric utilities in general do not disclose much about global warming or carbon dioxide.