Résultats Éditeur "Tantor Media" dans Sciences de la Terre

Humans depend on soil for 95 percent of global food production, yet let it erode at unsustainable rates. In the United States, China, and India, vast tracts of farmland will be barren of topsoil within this century. The combination of intensifying erosion caused by climate change and the increasing food needs of a growing world population is creating a desperate need for solutions to this crisis.

Frank Ledwidge offers a sweeping look at the history of air warfare, introducing the major battles, crises, and controversies where air power has taken center stage and exploring the changes in technology and air power capabilities over time. Considering whether bombing has ever been truly effective, he discusses whether wars can be won from the air and concludes by analyzing whether there is a future for manned air power, or if it is inevitable that drones will dominate 21st-century war in the air.

Biogeography is the study of geographic variation in all characteristics of life - ranging from genetic, morphological, and behavioral variation among regional populations of a species, to geographic trends in diversity of entire communities across our planet's surface. From the ancient hunters and gatherers to the earliest naturalists, Charles Darwin, Alfred Russel Wallace, and scientists today, the search for patterns in life has provided insights that proved invaluable for understanding the natural world.

Despite their cultural influence, the grand narrative of the dinosaur story is rarely told. Most of us have heard of Stegosaurus and Tyrannosaurus, but these two dinosaurs lived more than eighty million years apart—a greater span of time than the entire post-T. rex history of the planet. Furthermore, we often know even less about the environments these animals lived in. The Shortest History of the Dinosaurs tells the full story, a 230-million-year epic of small beginnings, spectacular golden periods, and eventual global domination.

In late April 1902, Mount Pelee, a volcano on the Caribbean island Martinique, began to wake up. It emitted clouds of ash and smoke for two weeks until violently erupting on May 8. Over 30,000 residents of St. Pierre were killed; they burned to death under rivers of hot lava and suffocated under pounds of hot ash. Only three people managed to survive: a prisoner trapped in a dungeon-like jail cell, a man on the outskirts of town, and a young girl found floating unconscious in a boat days later.

More than a hundred salt lakes dot Earth's surface, most of them hidden away in remote desert valleys. But today nearly all of them are at risk of drying up. Their death is a harbinger of rising sea levels, life-threatening dust storms, and environmental collapse. Writer and geographer Caroline Tracey didn't know this when she began crossing paths with salt lakes during her early twenties. From the Great Salt Lake to the Aral Sea, across the American West and around the world, the unusual beauty of these shimmering, uncanny bodies of water captured her imagination.

Four geologists and two mountain guides face the brutal beauty of West Antarctica eight hundred miles from the United States main base. Their search reaches far into the treacherous mountains of Marie Byrd Land. Over six weeks of living in tents and traveling by snowmobile, the team endures endless cold and furious blizzards. They cross ice fields and hidden crevasses, which one of the team learns about the hard way.

The open ocean, far from the shore and miles above the seafloor, is a vast and formidable habitat that is home to the most abundant life on our planet, from giant squid and jellyfish to anglerfish with bioluminescent lures that draw prey into their toothy mouths. Into the Great Wide Ocean takes listeners inside the peculiar world of the seagoing scientists who are providing tantalizing new insights into how the animals of the open ocean solve the problems of their existence.

Here is the extraordinary story of the unfolding of life on Earth, told by Michael J. Benton, a world-renowned authority on biodiversity. Ranging over four billion years, Benton weaves together the latest findings on fossils, earth history, evolutionary biology, and many other fields to highlight the great leaps that enabled life to evolve from microbe to human - big breakthroughs that made whole new ways of life possible - including cell division and multicellularity, hard skeletons, the move to land, the origin of forests, the move to the air.

The growing concern about global environmental change and human impacts on the planet has led to the emergence of a broad field of study on the 'sustainability' of human societies. The term's common usage can be traced back to the advent of the Earth Summit in 1992 when 'sustainable development' was broadly embraced by the international community as an ostensibly win-win proposition for economic development, social inclusion, and ecological conservation. Yet both the natural science underpinnings and the social implications of a quest for sustainability have been diffuse.

The story begins on a windswept beach in Barbados, from where we follow the ascent of a weather balloon that will travel along the jet stream all around the world. From this viewpoint we observe the effect of the jet in influencing human life around the hemisphere, and witness startling changes emerging. What is the jet stream and how well do we understand it? How does it affect our weather and is it changing? These are the main questions tackled in this book.

Xia, a Pulitzer Prize finalist, investigates the impacts of engineered landscapes, the market pressures of development, and the ecological activism and political scrimmages that have carved our contemporary coastline—and foretell even greater changes to our shores. From the beaches of the Mexican border up to the sheer-cliffed North Coast, the voices of Indigenous leaders, community activists, small-town mayors, urban engineers, and environmental scientists commingle. Together, they chronicle the challenges and urgency of forging a climate-wise future.

Volcanoes: What Everyone Needs to Know® guides the listener through one of nature's most fascinating and powerful forces, explaining essential geological concepts critical to understanding how and where volcanoes form before examining their physical structure and associated processes. Through real-world examples—from the explosive history of Mount Vesuvius to the colossal eruption of Yellowstone Supervolcano—Jovanelly uncovers mind-blowing facts about how volcanoes have shaped our planet, impacted the climate, and altered the course of civilizations.

Employing in-depth reporting on cutting edge science and technology, veteran journalist Thomas E. Weber takes us on a tour of how meteorologists, scientists, and officials track and prepare for major weather events. As climate change is altering our planet and making weather events more extreme, Weber introduces us to those on the front lines of weather preparation and prediction.

For millennia, human societies have viewed the ocean as a dumping ground for waste products of all kinds. The sources of marine pollution are extensive, including oil spills, sewage, fertilizers, pesticides, industrial wastes, heavy metals, ocean acidification, plastics, and even invasive...

A herd of bison standing in the snow. Layered bluffs of multicolored sandstone. A silver Airstream trailer on a mountain highway. These are familiar sights for Neil Mathison and his wife, Susan. Newly retired, their son in college, they embark upon a great American road trip "uncoupled from the tyranny of calendars or a specific journey."

A straightforward and fact-based exploration of how weather happens, how it relates to climate, and how science answers major questions about Earth as a system.

Signed on November 24, 1922, the Colorado River Compact is body of laws colloquially called the "Law of the River" that governs how human beings use water from the river system dubbed the "American Nile." No fewer than forty million people have come to rely on the Colorado River system in modern times-a system immersed in an unprecedented, unrelenting megadrought for more than two decades. Attempting to navigate this "new normal," policymakers are negotiating new management rules for the river system, a process coinciding with the compact's centennial that must be completed by 2026.

At stake in the "Science Wars" that have raged in academe and in the media is nothing less than the standing of science in our culture. One side argues that science is a "social construct," that it does not discover facts about the world, but rather constructs artifacts disguised as objective truths. This view threatens the authority of science and rejects science's claims to objectivity, rationality, and disinterested inquiry. Drawing Out Leviathan examines this argument in the light of some major debates about dinosaurs.

In the 19th and early 20th centuries, North American and European governments generously funded the discoveries of such famous paleontologists and geologists as Henry de la Beche, William Buckland, Richard Owen, Thomas Hawkins, Edward Drinker Cope, O. C. Marsh, and Charles W. Gilmore. In this book, Jane Davidson explores the motivation behind this rush to fund exploration, arguing that eagerness to discover strategic resources like coal deposits was further fueled by patrons who had a genuine passion for paleontology and the fascinating creatures that were being unearthed.