Pollution (Más de 52.000 resultados)

Condición: Very Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Acceptable. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Hardback. Condición: Fair. *Winner of the Penn Libraries Book Prize in Sustainability* *Named a Best Book of the Year by Scientific American* This timely and captivating look at the hidden impact of light pollution is "rich in revelation and insight.lyrical" (The Wall Street Journal) and urges us to cherish natural darkness for the sake of the environment, our own well-being, and all life on earth. How much light is too much light? Satellite pictures show our planet as a brightly glowing orb, and in our era of constant illumination, light pollution has become a major issue. The world's flora and fauna have evolved to operate in the natural cycle of day and night. But in the last 150 years, we have extended our day--and in doing so have forced out the inhabitants of the night and disrupted the circadian rhythms necessary to sustain all living things, including ourselves. In this "well-researched and surprisingly lyrical" (The New Statesman, UK) book, Swedish conservationist Johan Eklöf urges us to appreciate natural darkness, its creatures, and its unique benefits. He ponders the beauties of the night sky, traces the errant paths of light-drunk moths and the swift dives of keen-eyed owls, and shows us the bioluminescent creatures of the deepest oceans. As a devoted friend of the night, Eklöf reveals the startling domino effect of diminishing darkness: insects, dumbfounded by streetlamps, failing to reproduce; birds blinded and bewildered by artificial lights; and bats starving as they wait in vain for insects that only come out in the dark. For humans, light-induced sleep disturbances impact our hormones and weight, and can contribute to mental health problems like chronic stress and depression. The streetlamps, floodlights, and neon signs of cities are altering entire ecosystems, and scientists are only just beginning to understand their long-term effects. The light bulb--long the symbol of progress and development--needs to be turned off. "Urgent.vivid.eye-opening" (Publishers Weekly), and ultimately encouraging, The Darkness Manifesto outlines simple steps that we can take to benefit ourselves and the planet. In order to ensure a bright future, we must embrace the darkness.…

Paperback. Condición: Good. Clean Water is a book for anyone concerned about this precious resource who wants to become better informed. In straightforward language, Kenneth Vigil provides a comprehensive introduction to the many scientific, regulatory, cultural, and geographic issues associated with water quality and water pollution control.Most other books on water quality and pollution control are highly technical and very specific, and are aimed at engineers, scientists, or attorneys. Clean Water, on the other hand, is a comprehensive discussion of the subject intended for a wider audience of science students, educators, and the general public.Vigil avoids the use of technical jargon and uses many photos and diagrams to illustrate and explain concepts. He provides sufficient detail to educate readers about many broad topics and includes additional references at the end of each chapter for exploring specific topics in more detail.Clean Water summarizes the basic fundamentals of water chemistry and microbiology and outlines important water quality rules and regulations, all in concise, understandable prose. It describes the basic scientific principles behind water pollution control and the broader approach of addressing water pollution problems through watershed management. There are sections on drinking water and on citizen involvement in water pollution control efforts at home and in the community.This is a thoroughly revised edition of Vigil's 1996 book, Clean Water: The Citizen's Complete Guide to Water Quality and Water Pollution Control, which was praised by reviewers and has been used as a textbook at colleges and high schools throughout the U.S.…

paperback. Condición: Very Good.

hardcover. Condición: Good.

paperback. Condición: Good.

paperback. Condición: Fair.

Hardback. Condición: Good. Through this charming story, children will become aware of the growing problem of trash polluting the ocean. Fish highlights the issues with a simple and engaging illustrated narrative and also suggests a solution in the form of recycling.All Finn wants is to catch a nice, tasty fish for his dinner, but no matter how hard he tries all he seems to catch at the end of his fishing line is other people's trash. The longer he spends out on the ocean, the more crazy objects he collects! Finn and his dog Skip go home each day with a full boat, but empty tummies.It isn't long before Finn finds a way to reuse and recycle everything he has collected. Pretty soon he makes enough money to make a tasty dinner every day, and under his care, the ocean becomes clean, bright, and full of fish again. …

Condición: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

hardcover. Condición: Fair.

paperback. Condición: Very Good.

Condición: like_new. Book is in like new condition with only potential shelf wear. No marking or highlighting.

Paperback. Condición: Very Good. New Content and Look for This Perennially Bestselling Spiritual Warfare Book Demons are nesting in Christian homes--and even churches. Hard to believe? As Eddie and Alice Smith explain, a small opening is all it takes for evil spirits to gain access. Once in, they defile the spiritual atmosphere and damage our relationships, our ministries, our success, even our health. We can stop these evil infestations. In this newly revised and expanded edition, the Smiths offer amazing real-life stories showing the inroads that spiritual pollution makes--and how to get rid of it. Listeners will learn to detect the presence of demons, follow the seven-step biblical process of purification, and close the door behind these intruders for good.…

Paperback. Condición: Good. New Content and Look for This Perennially Bestselling Spiritual Warfare Book Demons are nesting in Christian homes--and even churches. Hard to believe? As Eddie and Alice Smith explain, a small opening is all it takes for evil spirits to gain access. Once in, they defile the spiritual atmosphere and damage our relationships, our ministries, our success, even our health. We can stop these evil infestations. In this newly revised and expanded edition, the Smiths offer amazing real-life stories showing the inroads that spiritual pollution makes--and how to get rid of it. Listeners will learn to detect the presence of demons, follow the seven-step biblical process of purification, and close the door behind these intruders for good.…

Paperback. Condición: Very Good. In When Smoke Ran Like Water , the world-renowned epidemiologist Devra Davis confronts the public triumphs and private failures of her lifelong battle against environmental pollution. She documents the shocking toll of a public-health disaster-300,000 deaths a year in the U.S. and Europe from the effects of pollution-and asks why we remain silent. For Davis, the issue is personal: Pollution is what killed many in her family and forced some of the others, survivors of the 1948 smog emergency in Donora, Pennsylvania, to live out their lives with impaired health. She describes that episode and also makes startling revelations about how the deaths from the London smog of 1952 were falsely attributed to influenza how the oil companies and auto manufacturers fought for decades to keep lead in gasoline, while knowing it caused brain damage and many other battles. When Smoke Ran Like Water makes a devastating case for change.…

Condición: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

Paperback. Condición: Good. In When Smoke Ran Like Water , the world-renowned epidemiologist Devra Davis confronts the public triumphs and private failures of her lifelong battle against environmental pollution. She documents the shocking toll of a public-health disaster-300,000 deaths a year in the U.S. and Europe from the effects of pollution-and asks why we remain silent. For Davis, the issue is personal: Pollution is what killed many in her family and forced some of the others, survivors of the 1948 smog emergency in Donora, Pennsylvania, to live out their lives with impaired health. She describes that episode and also makes startling revelations about how the deaths from the London smog of 1952 were falsely attributed to influenza how the oil companies and auto manufacturers fought for decades to keep lead in gasoline, while knowing it caused brain damage and many other battles. When Smoke Ran Like Water makes a devastating case for change.…

Condición: Good. Item in good condition. Textbooks may not include supplemental items i.e. CDs, access codes etc.

Paperback. Condición: Fair. In When Smoke Ran Like Water , the world-renowned epidemiologist Devra Davis confronts the public triumphs and private failures of her lifelong battle against environmental pollution. She documents the shocking toll of a public-health disaster-300,000 deaths a year in the U.S. and Europe from the effects of pollution-and asks why we remain silent. For Davis, the issue is personal: Pollution is what killed many in her family and forced some of the others, survivors of the 1948 smog emergency in Donora, Pennsylvania, to live out their lives with impaired health. She describes that episode and also makes startling revelations about how the deaths from the London smog of 1952 were falsely attributed to influenza how the oil companies and auto manufacturers fought for decades to keep lead in gasoline, while knowing it caused brain damage and many other battles. When Smoke Ran Like Water makes a devastating case for change.…

Condición: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc.

Condición: Good. Item in good condition and has highlighting/writing on text. Used texts may not contain supplemental items such as CDs, info-trac etc.

Condición: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condición: good. Book is in good condition and may include underlining highlighting and minimal wear. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condición: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.

Condición: very_good. Book is in very good condition and may include minimal underlining highlighting. The book can also include "From the library of" labels. May not contain miscellaneous items toys, dvds, etc. . We offer 100% money back guarantee and 24 7 customer service.