Nature

Spellman's Standard Handbook for Wastewater Operators is a three-volume study guide and readily accessible source of information for review in preparing wastewater personnel for operator certification and licensure. These handbooks are resource manuals and troubleshooting guides that contain a compilation of wastewater treatment information, data, operational material, process control procedures and problem solving, safety and health information, new trends in wastewater treatment administration and technology, and numerous sample problem-solving practice sets, many based on actual tests.The Handbook volumes review the wastewater operator's job-related knowledge as job requirements identified by the examination developers as essential for a minimally competent Class IV through Class I or Grade I through Grade V wastewater treatment plant operator. Every attempt has been made to make the three Handbook volumes as comprehensive as possible, while maintaining their compact, practical format. more...

Price: $74.95

Seals, seabirds, whales and dolphins are at the top of marine food chains: studying their ecology can help identify and monitor changes in wider marine ecosystems. This book examines our current understanding of marine predator ecology and investigates how it can be used in management and conservation of marine habitats. more...

Price: $60.00

In this groundbreaking book, the New York Times bestselling coauthor of The Green Book Thomas M. Kostigen reveals the vital missing link in today’s environmental crisis: how we as individuals are connected to the most tenuous geography on the planet. Despite the recent prominence of “green” issues in the news, we continue to ignore the raw relationship between the earth and our actions. But the seemingly insignificant things we do every day have the power to literally alter the landscape in the ongoing battle to resuscitate the planet. Kostigen writes:. “We may reduce, reuse, recycle. So we save a tree. We use less gas. We conserve power. What effect do those actions really have on the world? So much of this information is in a vacuum without the necessary context. We have been told, not shown what issues matter and why. Read on and you will be taken to the frontlines of the environmental battlegrounds. This isn’t about conjecture or the future. In these pages, we travel to distant and exotic locales to make clear the price of our current actions.”. Starting with Jerusalem, where we see history crumbling before our eyes, Kostigen then takes us to what well may be a glimpse of our future in Linfen City, China, one of the most polluted cities on the planet. From a garbage patch twice the size of Texas in the middle of the Pacific Ocean, to the melting arctic ice shelf, to the flood zone that is Mumbai, India, to the dwindling rainforests of the Amazon, You Are Here describes the environmental crisis in a way we can feel, see, and touch. Kostigen presents us with opportunities for change and shows us how to take action on the spot, wherever we are. Combining groundbreaking research and page-turning frontline reporting, Kostigen pulls back the curtain on the most pressing and provocative issues of the day and in so doing we see the earth and our place on it in brand new light. more...

Price: $25.95

The 'environment' embraces many disciplines - ecology, law, physics, chemistry, biology, environmental health, toxicology, genetic engineering and radiology. The book fills a need for an authoritative yet accessible source of reference which expertly summarises the legal, scientific, economic and social issues. more...

Price: $38.95

In weiten Gebieten Mitteleuropas ist Ackerbau auf ertragsschwachen Standorten nur mit ffentlicher Frderung kostendeckend. Diese ist fr die nhere Zukunft gesichert, langfristig aber ungewiss. Eine groflchige Aufgabe des Ackerbaus wre aus zahlreichen Grnden problematisch. Ausgehend von einer historischen Betrachtung untersucht dieses Buch Perspektiven eines extensiven, multifunktionellen Ackerbaus, der Naturschutz und Erholungseignung in sein Zielbndel integriert. Anbautechnik, Fruchtfolgen sowie Wirkungen auf Bodenfruchtbarkeit, Wasserhaushalt und Artenvielfalt werden vorgestellt. Detailliert ermittelt werden sodann die gesellschaftlichen Kosten dieses Landnutzungssystems, die sich im Vergleich mit anderen als gering erweisen. Der Erholungswert wird mittels Zahlungsbereitschaftsanalysen erhoben. Die Gegenberstellung von Kosten und Nutzen, die Akzeptanz von Seiten der Landwirtschaft sowie weitere wichtige Aspekte sprechen dafr, dem extensiven Ackerbau einen Platz im Spektrum knftiger Landnutzungen einzurumen. more...

Price: $139.00