For millennia the location of the Nile River’s headwaters was shrouded in mystery. In the 19th century, there was a frenzy of interest in ancient Egypt. At the same time, European powers sent off waves of explorations intended to map the unknown corners of the globe—and extend their colonial empires.

What does it take to be one of the world's best high-altitude mountain climbers? A lot of fundraising; traveling in some of the world's most dangerous countries; enduring cold bivouacs, searing lungs, and a cloudy mind when you can least afford one. It means learning the hard lessons the mountains teach. Steve House built his reputation on ascents throughout the Alps, Canada, Alaska, the Karakoram, and the Himalaya that have expanded possibilities of style, speed, and difficulty.

Eugene Linden wrote his first story on climate change, for Time magazine, in 1988; it was just the beginning of his investigative work, exploring all ramifications of this impending disaster. Fire and Flood represents his definitive case for the prosecution as to how and why we have arrived at our current dire pass, closing with his argument that the same forces that have confused the public’s mind and slowed the policy response are poised to pivot with astonishing speed, as long-term risks have become present-day realities and the cliff’s edge is now within view.

In late-1940s America, few writers commanded attention like Bernard DeVoto. Alongside his brilliant wife and editor, Avis, DeVoto was a firebrand of American liberty, free speech, and perhaps our greatest national treasure: public lands. But when a corrupt band of lawmakers, led by Senator Pat McCarran, sought to quietly cede millions of acres of national parks and other western lands to logging, mining, and private industry, the DeVotos entered the fight of their lives.

Living at the limits of our ordinary perception, mosses are a common but largely unnoticed element of the natural world. Gathering Moss is a beautifully written mix of science and personal reflection that invites listeners to explore and learn from the elegantly simple lives of mosses.

A major audiobook about the future of the world, blending intellectual and natural history and field reporting into a powerful account of the mass extinction unfolding before our eyes. Over the last half a billion years, there have been five mass extinctions, when the diversity of life on Earth suddenly and dramatically contracted. Scientists around the world are currently monitoring the sixth extinction, predicted to be the most devastating extinction event since the asteroid impact that wiped out the dinosaurs.

For the last 50 years, the trees of the boreal forest have been moving north. The Treeline takes us along this critical frontier of our warming planet from Norway to Siberia, Alaska to Greenland, to meet the scientists, residents, and trees confronting huge geological changes.

Our world has ended five times: It has been broiled, frozen, poison gassed, smothered, and pelted by asteroids. In The Ends of the World, Peter Brannen dives into deep time, exploring Earth's past dead ends, and in the process offers us a glimpse of our possible future. Many scientists now believe that the climate shifts of the 21st century have analogs in these five extinctions.

Are there any genuinely wild places left in Britain and Ireland? Or have we tarmacked, farmed and built ourselves out of wildness? In his vital, bewitching, inspiring classic, Robert Macfarlane sets out in search of the wildness that remains.

Since its inception, however, America’s public land system has been embroiled in controversy - caught in the push and pull between the desire to develop the valuable resources the land holds or conserve them. Alarmed by rising tensions over the use of these lands, hunter, angler, and outdoor enthusiast Mark Kenyon set out to explore the spaces involved in this heated debate, and learn firsthand how they came to be and what their future might hold.

This gripping true story follows a biologist's human-powered journey from the Pacific Northwest to the Arctic to rediscover her love of birds, nature, and adventure—perfect for fans of Cheryl Strayed.​

Early on in his life, Matt craved a return to nature. When he became an adult, he set aside his comfortable urban life and lived entirely off the land. In this riveting narrative that brings together epic adventure and spiritual quest, he shows us what extraordinary things the human body is capable of when pushed to its limits. He learns the secrets of the Tarahumara Indians, which help him run the 1,600-mile Pacific Crest Trail in just 58 days and endure temperature swings of 100 degrees.

On my 23rd birthday, my father gave me an envelope which I figured would be a gift certificate for something outdoors. But to my surprise, it was an airline ticket to Atlanta! My confusion turned into huge excitement when he said, "We are going to hike the Appalachian Trail in less than 50 days. Get ready son." At first, I thought I should just write this book like a journal of what we did. But then my father suggested that I should write it like a guidebook that can help anyone from a beginner to an advanced hiker.

This best-selling, groundbreaking exploration of the Far North is a classic of natural history, anthropology, and travel writing.

In Eager, environmental journalist Ben Goldfarb reveals that our modern idea of what a healthy landscape looks like and how it functions is wrong, distorted by the fur trade that once trapped out millions of beavers from North America's lakes and rivers. The consequences of losing beavers were profound: streams eroded, wetlands dried up, and species from salmon to swans lost vital habitat. Today, a growing coalition of "Beaver Believers" recognizes that ecosystems with beavers are far healthier, for humans and non-humans alike, than those without them.