Traditionally, Americans learned in school that the ancestors of the people who inhabited the Western Hemisphere at the time of Columbus' landing had crossed the Bering Strait 12,000 years ago; existed mainly in small nomadic bands; and lived so lightly on the land that the Americas were, for all practical purposes, still a vast wilderness. But as Charles C. Mann now makes clear, archaeologists and anthropologists have spent the last 30 years proving these and many other long-held assumptions wrong.

More than 200 million years ago, geological forces split apart the continents. Isolated from each other, the two halves of the world developed radically different suites of plants and animals. When Christopher Columbus set foot in the Americas, he ended that separation at a stroke. Driven by the economic goal of establishing trade with China, he accidentally set off an ecological convulsion as European vessels carried thousands of species to new homes across the oceans.

In this scientifically informed account of the changes occurring in the world over the last century, award-winning broadcaster and natural historian Sir David Attenborough shares a lifetime of wisdom and a hopeful vision for the future.

In Jared Diamond’s follow-up to the Pulitzer-Prize winning Guns, Germs and Steel, the author explores how climate change, the population explosion, and political discord create the conditions for the collapse of civilization. Environmental damage, climate change, globalization, rapid population growth, and unwise political choices were all factors in the demise of societies around the world, but some found solutions and persisted.

After nearly a decade overseas as a war reporter, the acclaimed journalist Dahr Jamail returned to America to renew his passion for mountaineering, only to find that the slopes he had once climbed have been irrevocably changed by climate disruption. In response, Jamail embarks on a journey to the geographical front lines of this crisis - from Alaska to Australia’s Great Barrier Reef, via the Amazon rainforest - in order to discover the consequences to nature and to humans of the loss of ice.

A deft blend of science reporting and travel writing, The Journeys of Trees explores the evolving movements of forests by focusing on five trees: giant sequoia, ash, black spruce, Florida torreya, and Monterey pine.

Greatly expanding on his blockbuster 1421, distinguished historian Gavin Menzies uncovers the complete untold history of how mankind came to the Americas - offering new revelations and a radical rethinking of the accepted historical record in Who Discovered America? The iconoclastic historian's magnum opus, Who Discovered America? calls into question our understanding of how the American continents were settled, shedding new light on the well-known "discoveries" of European explorers, including Christopher Columbus.

Trouet, a leading tree-ring scientist, takes us out into the field, from remote African villages to radioactive Russian forests, offering listeners an insider's look at tree-ring research, a discipline formally known as dendrochronology. Tracing her own professional journey while exploring dendrochronology's history and applications, Trouet describes the basics of how tell-tale tree cores are collected and dated with ring-by-ring precision, explaining the unexpected and momentous insights we've gained from the resulting samples.

In Four Lost Cities, acclaimed science journalist Annalee Newitz takes listeners on an entertaining and mind-bending adventure into the deep history of urban life. Investigating across the centuries and around the world, Newitz explores the rise and fall of four ancient cities, each the center of a sophisticated civilization: the Neolithic site of Çatalhöyük in Central Turkey, the Roman vacation town of Pompeii in Italy, the medieval megacity of Angkor in Cambodia, and the indigenous metropolis Cahokia, which stood beside the Mississippi River where East St. Louis is today.

At a time when Google Maps can take you on a virtual tour of Yosemite's remotest trails and cell phones double as navigational systems, it's hard to imagine there's any uncharted ground left on the planet. In Unruly Places, Alastair Bonnett goes to some of the most unexpected, offbeat places in the world to reinspire our geographical imagination. Bonnett's remarkable tour includes moving villages, secret cities, no man's lands, and floating islands.

The Colorado River is an essential resource for a surprisingly large part of the United States, and every gallon that flows down it is owned or claimed by someone. David Owen traces all that water from the Colorado’s headwaters to its parched terminus, once a verdant wetland but now a million-acre desert. He takes listeners on an adventure downriver, along a labyrinth of waterways, reservoirs, power plants, farms, fracking sites, ghost towns, and RV parks, to the spot near the US-Mexico border where the river runs dry.

Mark Arax is from a family of Central Valley farmers, a writer with deep ties to the land who has watched the battles over water intensify even as California lurches from drought to flood and back again. In The Dreamt Land, he travels the state to explore the one-of-a-kind distribution system, built in the 1940s, '50s and '60s, that is straining to keep up with California's relentless growth. The Dreamt Land weaves reportage, history and memoir to confront the "Golden State" myth in riveting fashion.

After 500 years, the world's huge debt to the wisdom of the Indians of the Americas has finally been explored in all its vivid drama by anthropologist Jack Weatherford. He traces the crucial contributions made by the Indians to our federal system of government, our democratic institutions, modern medicine, agriculture, architecture, and ecology, and in this astonishing, ground-breaking book takes a giant step toward recovering a true American history.

The world is waking up to a new reality: wildfires are now seasonal in California, the Northeast is getting less and less snow each winter, and the ice sheets in the Arctic and Antarctica are melting fast. Heat is the first order threat that drives all other impacts of the climate crisis. And as the temperature rises, it is revealing fault lines in our governments, our politics, our economy, and our values. The basic science is not complicated: Stop burning fossil fuels tomorrow, and the global temperature will stop rising tomorrow.

When painter Winslow Homer first sailed into the Gulf of Mexico, he was struck by its "special kind of providence." Indeed, the Gulf presented itself as America's sea - bound by geography, culture, and tradition to the national experience - and yet, there has never been a comprehensive history of the Gulf until now. And so, in this rich and original work that explores the Gulf through our human connection with the sea, environmental historian Jack E. Davis finally places this exceptional region into the American mythos in a sweeping history that extends from the Pleistocene age to the 21st century.

In Jared Diamond’s follow-up to the Pulitzer-Prize winning Guns, Germs and Steel, the author explores how climate change, the population explosion, and political discord create the conditions for the collapse of civilization. Environmental damage, climate change, globalization, rapid population growth, and unwise political choices were all factors in the demise of societies around the world, but some found solutions and persisted.

The history of the Great Warming of a half millennium ago suggests that we may yet be underestimating the power of climate change to disrupt our lives todayand our vulnerability to drought, writes Fagan, is the silent elephant in the room.

Water scarcity is on everyone's mind. Long taken for granted, water availability has entered the realm of economics, politics, and people's food and lifestyle choices. But as anxiety mounts - even as a swath of California farmland has been left fallow and extremist groups worldwide exploit the desperation of people losing livelihoods to desertification - many are finding new routes to water security with key implications for food access, economic resilience, and climate change.

Land - whether meadow or mountainside, desert or peat bog, parkland or pasture, suburb or city - is central to our existence. It quite literally underlies and underpins everything. Employing the keen intellect, insatiable curiosity, and narrative verve that are the foundations of his previous bestselling works, Simon Winchester examines what we human beings are doing - and have done - with the billions of acres that together make up the solid surface of our planet.

Dark Emu argues for a reconsideration of the 'hunter-gatherer' tag for pre-colonial Aboriginal Australians and attempts to rebut the colonial myths that have worked to justify dispossession. Accomplished author Bruce Pascoe provides compelling evidence from the diaries of early explorers that suggests that systems of food production and land management have been understated in modern retellings of Aboriginal history, and that a new look at Australia's past is required.

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 nearly a decade overseas as a war reporter, the acclaimed journalist Dahr Jamail returned to America to renew his passion for mountaineering, only to find that the slopes he had once climbed have been irrevocably changed by climate disruption. In response, Jamail embarks on a journey to the geographical front lines of this crisis - from Alaska to Australia’s Great Barrier Reef, via the Amazon rainforest - in order to discover the consequences to nature and to humans of the loss of ice.

The Nile, like all of Egypt, is both timeless and ever-changing. In this audio, renowned Egyptologist Toby Wilkinson takes us on a journey downriver that is both history and travelogue. We begin at the First Nile Cataract, close to the modern city of Aswan. From there, Wilkinson guides us through the illustrious nation birthed by this great river.

More than 200 million years ago, geological forces split apart the continents. Isolated from each other, the two halves of the world developed radically different suites of plants and animals. When Christopher Columbus set foot in the Americas, he ended that separation at a stroke. Driven by the economic goal of establishing trade with China, he accidentally set off an ecological convulsion as European vessels carried thousands of species to new homes across the oceans.

Traditionally, Americans learned in school that the ancestors of the people who inhabited the Western Hemisphere at the time of Columbus' landing had crossed the Bering Strait 12,000 years ago; existed mainly in small nomadic bands; and lived so lightly on the land that the Americas were, for all practical purposes, still a vast wilderness. But as Charles C. Mann now makes clear, archaeologists and anthropologists have spent the last 30 years proving these and many other long-held assumptions wrong.

When painter Winslow Homer first sailed into the Gulf of Mexico, he was struck by its "special kind of providence." Indeed, the Gulf presented itself as America's sea - bound by geography, culture, and tradition to the national experience - and yet, there has never been a comprehensive history of the Gulf until now. And so, in this rich and original work that explores the Gulf through our human connection with the sea, environmental historian Jack E. Davis finally places this exceptional region into the American mythos in a sweeping history that extends from the Pleistocene age to the 21st century.

In a captivating tour of cities famous and forgotten, acclaimed historian Ben Wilson tells the glorious, millennia-spanning story how urban living sparked humankind's greatest innovations.

In Four Lost Cities, acclaimed science journalist Annalee Newitz takes listeners on an entertaining and mind-bending adventure into the deep history of urban life. Investigating across the centuries and around the world, Newitz explores the rise and fall of four ancient cities, each the center of a sophisticated civilization: the Neolithic site of Çatalhöyük in Central Turkey, the Roman vacation town of Pompeii in Italy, the medieval megacity of Angkor in Cambodia, and the indigenous metropolis Cahokia, which stood beside the Mississippi River where East St. Louis is today.

Recent research has revealed that the richest person of all time lived in the 14th century in West Africa and went by many names, including Kankan Musa Keita, Emir of Melle, Lord of the Mines of Wangara, Conqueror of Ghanata, and the Lion of Mali II, but today he is usually referred to as Mansa Musa. Adjusting his wealth to modern values, he was worth about an estimated $400 billion as the Sultan of ancient Mali, which controlled the trade routes across the Sahara Desert.

After 500 years, the world's huge debt to the wisdom of the Indians of the Americas has finally been explored in all its vivid drama by anthropologist Jack Weatherford. He traces the crucial contributions made by the Indians to our federal system of government, our democratic institutions, modern medicine, agriculture, architecture, and ecology, and in this astonishing, ground-breaking book takes a giant step toward recovering a true American history.