検索キーワード： 生態学

In the 2012 edition of its flagship report, Worldwatch celebrates the twentieth anniversary of the 1992 Earth Summit with a far-reaching analysis of progress toward building sustainable economies. Written and read in clear language, State of the World 2012 offers a new perspective on what changes and policies will be necessary to make sustainability a permanent feature of the world's economies.

Animal migration is a magnificent sight: a mile-long blanket of cranes rising from a Nebraska river and filling the sky; hundreds of thousands of wildebeests marching across the Serengeti; a blaze of orange as millions of monarch butterflies spread their wings to take flight. Nature’s great migrations have captivated countless spectators, none more so than premier ecologist David S. Wilcove. In No Way Home, his awe is palpable - as are the growing threats to migratory animals.

The Digital Age was expected to usher in an era of clean production, an alternative to smokestack industries and their pollutants. But as environmental journalist Elizabeth Grossman reveals in this penetrating analysis of high tech manufacture and disposal, digital may be sleek, but it's anything but clean. Deep within every electronic device lie toxic materials that make up the bits and bytes, a complex thicket of lead, mercury, cadmium, plastics, and a host of other often harmful ingredients.

Perhaps more than any other scientist of our century, Edward O. Wilson has scrutinized animals in their natural settings, tweezing out the dynamics of their social organization, their relationship with their environments, and their behavior, not only for what it tells us about the animals themselves, but for what it can tell us about human nature and our own behavior. He has brought the fascinating and sometimes surprising results of these studies to general readers through a remarkable collection of books.

Weisman visits an extraordinary range of the world's cultures, religions, nationalities, tribes, and political systems to learn what in their beliefs, histories, liturgies, or current circumstances might suggest that sometimes it's in their own best interest to limit their growth.

After the death of his brother and the sudden end of his marriage, and after his ex-wife moved to another state leaving him alone with their two young children, Dan Glick embarked on single fatherhood in an unusual way: he took his kids on a journey around the world. The idea was to go see some of the world's rare life forms before they disappeared from the planet, and to do it before the kids themselves would grow up and chart their own paths.

Mark Seth Lender’s home is on the edge of a salt marsh. From his front porch and back yard he is witness to an astonishing array of wildlife, but nothing he sees is more beautiful and inspiring than the birds that fill the air, perch on trees and wade in shallow water. His reports on the sighting of birds like great horned owls, little blue herons and snowy egrets are featured in the segment "Salt Marsh Diary" heard on NPR’s Living on Earth. For the first time, he has chronicled the marsh’s life in a book penned from his perch.

Here, for the first time, is a collection of short speeches by the charismatic doctor and social activist Paul Farmer. One of the most passionate and influential voices for global health equity and social justice, Farmer encourages young people to tackle the greatest challenges of our times. Engaging, often humorous, and always inspiring, these speeches bring to light the brilliance and force of Farmer's vision in a single, accessible volume.

An astonishing transformation over the last 20,000 years has seen our planet changed from a frigid wasteland into the temperate world within which our civilization has grown and thrived. This dynamic episode in our planet's history, right at the close of the Ice Age, saw not only a huge temperature hike but also the Earth's crust bouncing and bending in response to the melting of the great ice sheets and the filling of the ocean basins - dramatic geophysical events that triggered earthquakes, spawned tsunamis, and provoked a series of eruptions from the world's volcanoes.

Climate change is a major topic of concern today and will be so for the foreseeable future, as predicted changes in global temperatures, rainfall, and sea level continue to take place. But as Jan Zalasiewicz and Mark Williams reveal in The Goldilocks Planet, the climatic changes we are experiencing today hardly compare to the changes the Earth has seen over the last 4.5 billion years.

In this classic work that continues to inspire its many fans, James Lovelock deftly explains his idea that life on Earth functions as a single organism. Written for the non-scientist, Gaia is a journey through time and space in search of evidence with which to support a new and radically different model of our planet. In contrast to conventional belief that living matter is passive in the face of threats to its existence, the book explores the hypothesis that the Earth's living matter - air, ocean, and land surfaces - forms a complex system that has the capacity to keep the Earth a fit place for life.

Many people will remember that Rachel Carson predicted a silent spring, but she also warned of a fruitless fall, a time with no pollination and no fruit. The fruitless fall nearly became a reality when, in 2007, beekeepers watched 30 billion bees mysteriously die. And they continue to disappear. The remaining pollinators, essential to the cultivation of a third of American crops, are now trucked across the country and flown around the world, pushing them ever closer to collapse.

A paradigm shift is roiling the environmental world. For decades people have unquestioningly accepted the idea that our goal is to preserve nature in its pristine, pre-human state. But many scientists have come to see this as an outdated dream that thwarts bold new plans to save the environment and prevents us from having a fuller relationship with nature. Humans have changed the landscapes they inhabit since prehistory, and climate change means even the remotest places now bear the fingerprints of humanity.

The sixth "mass extinction event" in the history of planet Earth is currently under way, with over two hundred species dying off every day. The cause of this seismic event is also the source of the single biggest threat to human life: our own inventions. But for all our talk about sea levels and biotechnology, do we really know what our future will actually look like? Will our immune systems be attacked by so-called super bugs, always evolving, and more easily spread than ever? Will the disappearance of numerous species cripple the biosphere?

Rat Island rises from the icy gray waters of the Bering Sea, a mass of volcanic rock covered with tundra, midway between Alaska and Siberia. Once a remote sanctuary for enormous flocks of seabirds, the island gained a new name when shipwrecked rats colonized, savaging the nesting birds by the thousands. Now, on this and hundreds of other remote islands around the world, a massive - and massively controversial - wildlife rescue mission is underway.

Framed by the author’s personal experience with backyard hens, Chickens: Their Natural and Unnatural Histories explores the history of the chicken from its descent from the dinosaurs to the space-age present. En route, Lembke surveys chickens in ancient Greece, the Middle Ages, the Renaissance, the 19th century, and modern times, including the role of chickens in Jewish and Muslim practices. She also investigates the birds’ contributions to science and their jaunty appearances in literature.

Eye of the Albatross takes us soaring to locales where whales, sea turtles, penguins, and shearwaters flourish in their own quotidian rhythms. Carl Safina’s guide and inspiration is an albatross he calls Amelia, whose life and far-flung flights he describes in fascinating detail. Interwoven with recollections of whalers and famous explorers, Eye of the Albatross probes the unmistakable environmental impact of the encounters between man and marine life.

Naturalist Joe Hutto’s latest adventures in wildlife observation take him to Wyoming’s Wind River Mountains. Hutto is living in a tent at 12,000 feet, where blizzards occur in July and where human wants become irrelevant—and human needs can become a matter of life and death—to study the Rocky Mountain bighorn sheep.

Un breve saggio, chiaro e semplice, per comprendere le ragioni individuali, sociali e spirituali che ci portano a scegliere la via ecologica e il ritorno alla natura. Con la mente, l’anima e il cuore. A short essay, plain and simple, to understand the reasons that lead us to choose the ecological way. With the mind, the soul and the heart.

We live in a world awash in manmade chemicals, from the pesticides on our front lawns to the diesel exhaust in the air we breathe. Although experts are beginning to understand the potential dangers of these substances, there are still more than 80,000 synthetic compounds that have not been sufficiently tested to interpret their effects on human health.