Aerosol particles are ubiquitous in the Earth's atmosphere and are central to many environmental issues such as climate change, stratospheric ozone depletion and air quality. In urban environments, aerosol particles can affect human health through their inhalation.

Atmospheric aerosols originate from naturally occurring...

The acclaimed metaphysical epic that binds together the cosmological phenomena of our time, ranging from crop circles to quantum theory to the resurgence of psychedelic drugs, to support the contention of the Mayan calendar that the year 2012 portends a global shift-in consciousness, culture, and way of living-of unprecedented...

Sustainable agriculture is a rapidly growing field aiming at producing food and energy in a sustainable way for humans and their children. It is a discipline that addresses current issues: climate change, increasing food and fuel prices, poor-nation starvation, rich-nation obesity, water pollution, soil erosion, fertility loss, pest control...

"In a clear, engaging style, Dr. Walters tells the tale of each disease like a detective story. He allows each mystery to unfold as it did in reality, often slowly, through the lives of the plants and animals involved, the first human victims, the government officials who tried to respond, and the scientists who ultimately explained what...

This book is published as part of the broad area of research on the changing global climate and its impact on the environment. After an introduction into the complexities of the subject, the history and present state of timberline research are outlined. Chapters on the tree species at timberline and on the relationship of timberline elevation to...

Many terms often used to describe old-growth forests imply that these forests are less vigorous, less productive and less stable than younger forests. But research in the last two decades has yielded results that challenge the view of old-growth forests being in decline. Given the importance of forests in battling climate change and the fact...

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This new edition is a major revision of the popular introductory reference on hydrology and watershed management principles, methods, and applications. The book's content and scope have been improved and condensed, with updated chapters on the management of forest, woodland, rangeland, agricultural urban, and mixed land use watersheds....