Showing results for "América" in Earth Sciences

In 1908, near Folsom, New Mexico, a cowboy discovered the remains of a herd of extinct giant bison. By examining flint points embedded in the bones, archeologists later determined that a band of humans had killed and butchered the animals 12,450 years ago. This discovery vastly expanded America's known human history but also revealed the long-standing danger Homo sapiens presented to the continent's evolutionary richness. Distinguished scholar Dan Flores's ambitious history chronicles the epoch in which humans and animals have coexisted in the "wild new world" of North America.

As recently as 11,000 years ago - "near time" to geologists - mammoths, mastodons, gomphotheres, ground sloths, giant armadillos, native camels and horses, the dire wolf, and many other large mammals roamed North America. In what has become one of science's greatest riddles, these large animals vanished in North and South America around the time humans arrived at the end of the last great ice age.

More than 10,000 years ago spectacularly large mammals roamed the pampas and jungles of South America. This book tells the story of these great beasts during and just after the Pleistocene, the geological epoch marked by the great ice ages. Megafauna describes the history and way of life of these animals, their comings and goings, and what befell them at the beginning of the modern era and the arrival of humans.

This volume, aimed at the general audience, presents life and times of the amazing animals that inhabited Earth more than 500 million years ago. The Cambrian Period was a critical time in Earth's history. During this immense span of time nearly every modern group of animals appeared. Although life had been around for more than 2 million millennia, Cambrian rocks preserve the record of the first appearance of complex animals with eyes, protective skeletons, antennae, and complex ecologies.

The story of the American West is the story of a relentless quest for a precious resource: water. It is a tale of rivers diverted and dammed, of political corruptions and intrigue, of billion-dollar battles over water rights, of ecologic and economic disaster. In Cadillac Desert, Marc Reisner writes of the earliest settlers, lured by the promise of paradise, and of the ruthless tactics employed by Los Angeles politicians and business interests to ensure the city's growth. He documents the bitter rivalry between two government giants to transform the West.

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.

All We Can Save illuminates the expertise and insights of dozens of diverse women leading on climate in the United States - scientists, journalists, farmers, lawyers, teachers, activists, innovators, wonks, and designers, across generations, geographies, and race - and aims to advance a more representative, nuanced, and solution-oriented public conversation on the climate crisis. These women offer a spectrum of ideas and insights for how we can rapidly, radically reshape society.

The thrilling story of the charismatic explorer who Simon Bolivar called "the true discoverer of South America" and the daring expedition that altered the course of science. From 1799 to 1804 German naturalist and adventurer Alexander von Humboldt conducted the first extensive scientific exploration of Latin America.

A journey around the United States in search of the truth about the threat of earthquakes leads to spine-tingling discoveries, unnerving experts, and ultimately the kind of preparations that will actually help guide us through disasters. It's a road trip full of surprises.

A riveting narrative about the biggest earthquake in North American recorded history - the 1964 Alaska earthquake that demolished the city of Valdez and swept away the island village of Chenega - and the geologist who hunted for clues to explain how and why it took place.

Who were the first humans to inhabit North America? According to the now familiar story, mammal hunters entered the continent some 12,000 years ago via a land bridge that spanned the Bering Sea. The presence of these early New World people was established by distinctive stone tools belonging to the Clovis culture. But are the Clovis tools Asian in origin? Drawing from original archaeological analysis, paleoclimatic research, and genetic studies, noted archaeologists Dennis J. Stanford and Bruce A. Bradley challenge the old narrative.

The great unknown of the Southwest is conquered by a one-armed man and his crew of adventurers, placing the Colorado River and the Grand Canyon on the map of the American continent. It is a journey no human being had ever made before. Dangerous rapids, narrow canyon walls offering no escape, terrifying river waterfalls, capsized boats, near drowning, lost equipment and disillusioned men are dramatically described by John Wesley Powell, leader of this adventurous party.

Southern Rivers is a thoroughly crafted exploration of the perilous state of the Southeast's rivers and the urgent need to safeguard their vitality. The region's rivers are the epicenter of North American freshwater biodiversity and are the top global hotspot for important aquatic animals, including mussels, turtles, snails, crayfish, and fish.

In this fresh and powerful work of environmental history, Martin Doyle explores how rivers have often been the source of arguments at the heart of the American experiment - over federalism, taxation, regulation, conservation, and development. Doyle tells the epic story of America and its rivers, from the US Constitution's roots in interstate river navigation, the origins of the Army Corps of Engineers, the discovery of gold in 1848, and the construction of the Hoover Dam and the TVA during the New Deal, to the failure of the levees in Hurricane Katrina.

Disaster relief as we know it did not exist when the deadliest tornado in U.S. history gouged a path from southeast Missouri through southern Illinois and into southwestern Indiana. The tri-state tornado of 1925 hugged the ground for 219 miles, generated wind speeds in excess of 300 miles per hour, and killed 695 people.

In this podcast, we tell the history of America without wasting your time on the parts you already know.

Although dinosaur fossils were first found in England, a series of dramatic discoveries during the late 1800s turned North America into a world center for vertebrate paleontology. At the same time, the United States emerged as the world’s largest industrial economy, and creatures like tyrannosaurus, brontosaurus, and triceratops became emblems of American capitalism. Large, fierce, and spectacular, American dinosaurs dominated the popular imagination, making front-page headlines and appearing in feature films.

Hosted by Dr. Lisa Patel, a pediatrician and Executive Director of the Consortium, this podcast focuses on how health professionals, policy makers, advocates, communicators, and activists are working to tackle the different sides of the greatest health crisis facing us today—climate change. The movement for climate and health justice is a broad one, and there are so many ways to fight for a healthier future. On Healthy Climate America, we'll talk with infectious disease experts, mental health clinicians, labor advocates, and many others from all different sides of the climate movement. We’...

Big Bone Lick: The Cradle of American Paleontology recounts the rich history of the fossil site that gave the world the first evidence of the extinction of several mammalian species, including the American mastodon. Big Bone Lick has played many roles: nutrient source, hallowed ground, salt mine, health spa, and a rich trove of wonders. Stanley Hedeen presents a comprehensive narrative of Big Bone Lick from its geological formation forward, explaining why the site attracted animals, regional tribespeople, European explorers and scientists, and eventually American pioneers.

In the middle of the Mojave Desert, Las Vegas casinos use billions of gallons of water for fountains, pirate lagoons, wave machines, and indoor canals. Meanwhile, the town of Orme, Tennessee, must truck in water from Alabama because it has literally run out.Robert Glennon captures the irony - and tragedy - of America’s water crisis in a book that is both frightening and wickedly comical.