Air pollution poses one of the greatest human health threats in the twenty‐first century, accounting for an estimated 7 million premature deaths annually. In the light of this, global efforts to promote clean air are ever more important and should feature among the key priorities on the agenda of the international community. The universal 2030 Agenda for Sustainable Development, adopted in September 2015 by the United Nations General Assembly, offers an important opportunity to tackle air pollution at a global scale. Stressing the importance of air pollution as a human health hazard, this article examines to what extent air quality is covered by the 17 Sustainable Development Goals ( SDG s), and provides an analysis of the added value of the 2030 Agenda vis‐à‐vis existing international regulatory instruments addressing air pollution. Even though the SDG s do not include a stand‐alone goal on air quality, the article concludes that the 2030 Agenda, by establishing clean air as an integral element of the principle of sustainable development, not only constitutes an important contribution to international (hard) law focusing on the atmosphere, but also sets out a much needed complementary pathway of tackling the issue in the absence of a global agreement on air pollution.
Already back in 1987 the Brundtland report by the World Commission on Environment and Development stressed that [n]ational and international law is being rapidly outdistanced by the accelerating pace and expanding scale of impacts on the ecological basis of development. Since then international environmental law regimes have multiplied and an up-to-date introduction to the constantly evolving field of international environmental law is very welcome, not least due to the lack of equally concise alternatives in the introductory literature. Aimed at filling this gap, Timo Koivurova with his Introduction to International Environmental Law chooses an approach well suited to the student readers he primarily intends to address. The book dispenses with footnotes, tables of treaties, and a comprehensive bibliography. Instead, a manageable number of endnotes accompany each chapter, preceded by a set of questions and research tasks, and followed by suggestions for further reading and websites addressing the respective topics. Thereby, the subject matter is presented in the most general fashion possible without making concessions to the scientific nature of the book, allowing [i]nternational environmental law and politics [to] speak for themselves (at xix). Moreover, in order to make the information provided easily accessible and comprehensible by a broad range of readers the book includes several boxes going into more detail on, e.g., specific cases, conventions, institutions, or environmental disasters. It illustrates topics and sometimes presents them from a different angle by adding photographs and figures, clarifying essentials as well as sparking the readers' imagination.
The structure of this book is unlike the structure of a classical textbook, i.e., prior to addressing the historical foundations of international environmental law, Koivurova, after a brief introduction outlining the structure of the book, first introduces the reader to the basic issues in international law (Chapter 1). This chapter includes an examination of the
What do you think should be the two or three highest priority political outcomes of the United Nations Conference on Sustainable Development (Rio+20), scheduled for Rio de Janeiro in June 2012?
Abstract. Urban air quality and human health are among the key aspects of future urban planning. In order to address pollutants such as ozone and particulate matter, efforts need to be made to quantify and reduce their concentrations. One important aspect in understanding urban air quality is the influence of urban vegetation which may act as both emitter and sink for trace gases and aerosol particles. In this context, the "Berlin Air quality and Ecosystem Research: Local and long-range Impact of anthropogenic and Natural hydrocarbons 2014" (BAERLIN2014) campaign was conducted between 2 June and 29 August in the metropolitan area of Berlin and Brandenburg, Germany. The predominant goals of the campaign were (1) the characterization of urban gaseous and particulate pollution and its attribution to anthropogenic and natural sources in the region of interest, especially considering the connection between biogenic volatile organic compounds and particulates and ozone; (2) the quantification of the impact of urban vegetation on organic trace gas levels and the presence of oxidants such as ozone; and (3) to explain the local heterogeneity of pollutants by defining the distribution of sources and sinks relevant for the interpretation of model simulations. In order to do so, the campaign included stationary measurements at urban background station and mobile observations carried out from bicycle, van and airborne platforms. This paper provides an overview of the mobile measurements (Mobile BAERLIN2014) and general conclusions drawn from the analysis. Bicycle measurements showed micro-scale variations of temperature and particulate matter, displaying a substantial reduction of mean temperatures and particulate levels in the proximity of vegetated areas compared to typical urban residential area (background) measurements. Van measurements extended the area covered by bicycle observations and included continuous measurements of O3, NOx, CO, CO2 and point-wise measurement of volatile organic compounds (VOCs) at representative sites for traffic- and vegetation-affected sites. The quantification displayed notable horizontal heterogeneity of the short-lived gases and particle number concentrations. For example, baseline concentrations of the traffic-related chemical species CO and NO varied on average by up to ±22.2 and ±63.5 %, respectively, on the scale of 100 m around any measurement location. Airborne observations revealed the dominant source of elevated urban particulate number and mass concentrations being local, i.e., not being caused by long-range transport. Surface-based observations related these two parameters predominantly to traffic sources. Vegetated areas lowered the pollutant concentrations substantially with ozone being reduced most by coniferous forests, which is most likely caused by their reactive biogenic VOC emissions. With respect to the overall potential to reduce air pollutant levels, forests were found to result in the largest decrease, followed by parks and facilities for sports and leisure. Surface temperature was generally 0.6–2.1 °C lower in vegetated regions, which in turn will have an impact on tropospheric chemical processes. Based on our findings, effective future mitigation activities to provide a more sustainable and healthier urban environment should focus predominantly on reducing fossil-fuel emissions from traffic as well as on increasing vegetated areas.
