Climate change is a major challenge facing modern society. The chemistry of air and its influence on the climate system forms the main focus of this book. Vol. 2 of Chemistry of the Climate System takes a problem-based approach to presenting global atmospheric processes, evaluating the effects of changing air compositions as well as possibilities for interference with these processes through the use of chemistry.

The work in your hand contains three main chapters, covering the chemistry of the condensed phase in the atmosphere, first, the different forms of atmospheric waters (precipitation, fog and clouds, dew), and secondly dust, now mostly termed particulate matter and, more scientifically, atmospheric aerosol. A third section treats the gases in the atmosphere. An introductory chapter covers the roots of the term atmospheric chemistry in its relations to chemistry in general and biogeochemistry as the chemistry of the climate system. Furthermore, a brief overview of understanding chemical reactions in aqueous and gaseous phase is given. It is my aim to pay respect to all persons who studied the substances in the air, to those who made small, and to them who made giant contributions for the progress in atmospheric science. I'm not a historian who is able to present the past from a true perspective of their time - this also would not be my aim. If possible, however, I try to interpret the past - almost limited to experimental fi ndings in the nineteenth century - through current values, without dismissal of the problems and ideas of earlier scientists. In this way it is possible to draw some ideas on the historical chemical state of the air. Hence, I name this voyage critical. However, nowhere in this book it is my attention to express my criticism to colleagues and scientifi c ancestors. Great scientists too were subject to errors; doing science consists from the permanent loop observation, interpretation, conclusion, and again testing against new observation. If this volume can contribute more than to be "a nice story" on atmospheric chemistry, then hopefully it inspires the reader to more critical reading of scientifi c publications, and, not to forget the older one.

Climate change is a major challenge facing the modern world. The chemistry of air and it's influence on the climate system forms the main focus of this monograph. The book presents a problem-based approach to presenting global atmospheric processes, evaluating the effects of changing air composition as well as possibilities for interference within these processes and indicates ways for solving the problem of climate change through chemistry. The new edition includes innovations and latest research results.

The second edition of this book presents the fundamentals of chemistry in light of their importance for the environment and environmental processes. The new edition includes updated references and a more practical approach to the topic. The comprehensive discussion is structured in three parts: introducing the theory of physical chemistry, evaluating elements and compounds, and presenting principles of environmental chemistry.

Climate change is a major challenge facing the modern world. The chemistry of air and it's influence on the climate system forms the main focus of this monograph. The book presents a problem-based approach to presenting global atmospheric processes, evaluating the effects of changing air composition as well as possibilities for interference within these processes and indicates ways for solving the problem of climate change through chemistry.

This is an extended version of lectures that were held at the summer workshop Atmosphiirische Umweltforschung im Spannungsfeld zwischen Technik und Natur (At mospheric Environmental Research between Technology and Nature) at the Techni 16, 1996. We were very happy to have Paul J. Crutzen, cal University in Cottbus on July winner of the Nobel Prize for chemistry in 1995, presenting the key lecture on glo bally changing chemistry in the atmosphere. Over the last decades, atmospheric chem istry has been established step by step, not just as an applied discipline of chemistry, but also as a key discipline for our understanding of air pollution, biogeochemical cycling, and climactic processes as well. In fact, the new definition of meteorology as the science of physics and chemistry of the atmosphere expresses this development very well. The chemistry of the atmosphere is strongly influenced by anthropogenic emissions, even on a global scale. As a result of emissions and chemical reactions, the chemical composition of the atmosphere influences the ecosystems directly via depo sition of trace substances, and indirectly by changing the physical climate. Therefore, in this book we combined state-of-the-art lectures describing the physical and chemi cal status of the atmosphere and selected issues representing the interface between atmosphere, technology and nature. Oxidising capacity, heterogeneous processes and acidity still remain as key issues in atmospheric chemistry, even in regions where efficient air control measures have been adopted resulting in reduction of primary atmospheric pollutants."

der Atomenergie nicht im Weg stehen wurde. Mehr als 50 Jahre nach dem Einstieg in die Nutzung der Atomenergie kann die Bundesregierung kein Endlager fur radioaktive Abfalle vorweisen. Damit stellt sich die Frage nach den Versaumnissen der Vergangenheit. Fur die Jahre 1955 bis 1979 wird untersucht, wie die Endlagerungsfrage von Behoerden und Beratern wahrgenommen wurde. Auswahl- und Durchsetzungsprozesse, Massnahmen und Motive werden beleuchtet. Funktion und Eignung des zwischen 1967 und 1978 genutzten Salzbergwerks Asse II stehen dabei im Mittelpunkt. Trotz zweifelhafter Langzeitsicherheit sollte die Grube als Endlager bis zum Jahr 2000 dienen. Der Atomwirtschaft und den zoegernden Energieversorgungsunternehmen konnte signalisiert werden, dass die Endlagerungsfrage dem wirtschaftlichen Durchbruch der Atomenergie nicht im Weg stehen wurde.