Planners, environmentalists, architects, engineers, policymakers and economists have to work together to ensure that planning and development can meet our present needs without compromising the ability of future generations. This collaboration was the aim of the 12th International Conference on Sustainable Development and Planning, from which the papers in this volume originate. Problems related to development and planning, which affect rural and urban areas, are present in all regions of the world. Accelerated urbanisation has resulted in the deterioration of the environment and loss of quality of life. Urban development can also aggravate problems faced by rural areas such as forests, mountain regions and coastal areas, amongst many others. Taking into consideration the interaction between different regions and developing new methodologies for monitoring, planning and implementation of novel strategies can offer solutions mitigating environmental pollution and non-sustainable use of available resources. Energy-saving and eco-friendly building approaches have become an important part of modern development, which places special emphasis on resource optimisation. Planning has a key role to play in ensuring that these solutions, as well as new materials and processes, are incorporated in the most efficient manner. The included papers feature new academic findings and their applications in planning and development strategies, assessment tools, and decision-making processes.

Resulting from a merger of two successful events, this book contains papers presented at the 11th International Conference on Waste Management and Environmental and Economic Impact on Sustainable Development. To prevent emerging threats to environmental and ecological systems we must learn from past failures to avoid repeating similar mistakes. Waste management is one of the key problems of modern society due to the ever-expanding volume and complexity of discarded domestic and industrial waste and its implications on health and the environment. Society is increasingly aware of the need to establish better practices and safer solutions for waste disposal. This creates a need for more research on current disposal methods such as landfills, incineration, chemical and effluent treatment, as well as recycling, clean technologies, waste monitoring, public and corporate awareness and general education. The desired direction of waste management is towards sustainable strategies that avoid the short term solutions applied in the past. The approach which has emerged as the most promising has been called 4Rs, where reduction, reuse, recycling and recovery are seen as the best actions. More recently these concepts have given rise to the new model of the 'Circular Economy', which is based on the reuse of what up to now has been considered waste, reintroducing them into the production cycle. Further steps are required towards the improvement of current technologies, increased collaboration between the public, government and private sectors and increased involvement of all stakeholders. The included research works put a focus on the impact of economic constraints on the environment, taking into account the social aspects as well as the over-use of natural resources, contamination and toxicity. Problems of great importance are addressed, with the goal of finding constructive and progressive approaches to ensure sustainability.

Discussing many important air pollution issues, the included contributions were presented at the 29th annual meeting in a successful series of international conferences dealing with the Modelling, Monitoring and Management of Air Pollution. The scientific knowledge derived from well-designed studies needs to be allied with further technical and economic studies to ensure cost-effective and efficient mitigation. In turn, the science, technology and economic outcomes are necessary but not sufficient. Increasingly, it is being recognised that the outcome of such research needs to be contextualised within well-formulated communication strategies that help policymakers and citizens to understand and appreciate the risks and rewards arising from air pollution management. Consequently, this volume comprises a wide range of high-quality papers that develop the fundamental science of air pollution and that place these new developments within the frame of mitigation and management of air pollution. Air pollution issues remain one of the most challenging problems facing the international community. The varied research published in this book covers topics such as Air pollution modelling; Indoor air pollution; Emission studies; Air pollution management, policy and legislation; Monitoring, measuring and data; Global, regional and local studies.