In the 1990s he and his colleagues made headlines with the discovery that the last ice age came to an abrupt end over a period of only three years. Here Alley offers the first popular account of the wildly fluctuating climate that characterized most of prehistory--long deep freezes alternating briefly with mild conditions--and explains that we humans have experienced an unusually temperate climate. But, he warns, our comfortable environment could come to an end in a matter of years."The Two-Mile Time Machine" begins with the story behind the extensive research in Greenland in the early 1990s, when scientists were beginning to discover ancient ice as an archive of critical information about the climate. Drilling down two miles into the ice, they found atmospheric chemicals and dust that enabled them to construct a record of such phenomena as wind patterns and precipitation over the past 110,000 years. The record suggests that "switches" as well as "dials" control the earth's climate, affecting, for example, hot ocean currents that today enable roses to grow in Europe farther north than polar bears grow in Canada. Throughout most of history, these currents switched on and off repeatedly (due partly to collapsing ice sheets), throwing much of the world from hot to icy and back again in as little as a few years.Alley explains the discovery process in terms the general reader can understand, while laying out the issues that require further study: What are the mechanisms that turn these dials and flip these switches? Is the earth due for another drastic change, one that will reconfigure coastlines or send certain regions into severe drought? Will global warming combine with natural variations in Earth's orbit to flip the North Atlantic switch again? Predicting the long-term climate is one of the greatest challenges facing scientists in the twenty-first century, and Alley tells us what we need to know in order to understand and perhaps overcome climate changes in the future.

    Some of these storms can be quite severe, causing damage to property, food crops, animals and even human life. In her latest children’s book “Extreme Weather! Weather For Kids Book On Storms: Hurricanes, Tornados, Blizzards, Thunderstorms & Much More” author Leanne Annett walks through a variety of extreme weather events and storms. This is Leanne's second book in the "Kids Nature Books Series". The book is full of color images to clearly show what each of the extreme weather events is. Note: This Extreme Weather Kid's Nature book has been designed for children aged approximately 7 years and older, who can read the book for themselves. Alternatively, parents can read the book to their kids (of all ages) and enjoy a fulfilling time of child and parent bonding. The extreme storms covered in this book include: 1. Thunderstorms 2. Tropical Cyclones, Hurricanes, Typhoons 3. Tornados 4. Snowstorms 5. Blizzards 6. Hailstorms 7. Ice Storms 8. Sandstorms & Dust Storms 9. Firestorms Why not take advantage of the limited time low price as this Kindle book launches and grab a copy for your child today. I am sure your child will enjoy the colorful pictures and the interesting information on Extreme Weather and Storms. This Kindle book is exclusive to the Amazon store. It can be easily downloaded and your child can begin reading and learning within a short time. Please let me know your thoughts on the book by leaving a review after you read it. Thanks so much and enjoy reading and expanding your knowledge of the world around us.

    Packed with photographs and details on characteristics, distinguishing features, and more, Smithsonian Handbooks: Rocks and Minerals makes identification easy.Designed for beginning and experienced collectors alike, this guide explains what rocks and minerals are, how they are classified, and how to start a collection. Look up different rocks and minerals, and find clear, annotated photography to pick out the key distinguishing features. Learn the differences between igneous, metamorphic, and sedimentary rocks, and reference the glossary for many more technical and scientific terms.Smithsonian Handbooks: Rocks and Minerals is filled with information about characteristics, colors, unique attributes, and more, making it one of the clearest identification guides for rock and mineral enthusiasts.

    Even during his lifetime, tales of the sharpshooting, skilled woodsman were—to his delight—told, retold, and elaborated on. As a US congressman, the former Creek War militiaman steadfastly opposed President Andrew Jackson’s Indian Removal Act. As a soldier, he made the ultimate sacrifice fighting for an independent Texas. Nearly two centuries after his untimely demise, he remains a legendary figure in American lore.   In this fictional account of Crockett’s life, author Cameron Judd offers a nuanced portrait of the man behind the myth. He depicts Crockett’s triumphs as a hunter, cattle drover, warrior, and legislator in riveting detail and poignantly illustrates his subject’s hardscrabble youth and complicated relationship with his father. Meticulously researched and rich in vibrant action, Crockett of Tennessee captures the charisma, ambition, and bravery of the man known as the “King of the Wild Frontier.”

    Using glorious, colorful graphics, Mark Ovenden traces the history of mass transit-including rare and historic maps, diagrams, and photographs, some available for the first time since their original publication. Transit Maps is the graphic designer's new bible, the transport enthusiast's dream collection, and a coffee-table essential for everyone who's ever traveled in a city.

    More than twenty essays assemble a chorus of vibrant voices, including geographers, scholars of sugar and bananas, the city's remarkable musicians, prison activists, environmentalists, Arab and Native voices, and local experts, as well as the coauthors' compelling contributions. Featuring 22 full-color two-page-spread maps, Unfathomable City plumbs the depths of this major tourist destination, pivotal scene of American history and culture and, most recently, site of monumental disasters such as Hurricane Katrina and the BP oil spill.The innovative maps' precision and specificity shift our notions of the Mississippi, the Caribbean, Mardi Gras, jazz, soils and trees, generational roots, and many other subjects, and expand our ideas of how any city is imagined and experienced. Together with the inspired texts, they show New Orleans as both an imperiled city--by erosion, crime, corruption, and sea level rise--and an ageless city that lives in music as a form of cultural resistance. Compact, lively, and completely original, Unfathomable City takes readers on a tour that will forever change the way they think about place.Read an excerpt here: Unfathomable City: A New Orleans Atlas by Rebecca Solnit and Rebecca Snedeker by University of California PressListen to an interview with the authors here:http://www.ucpress.edu/blog/16097/new...

    News of both the Ice Man's discovery and his age, which was put at over five thousand years, fascinated scientists and newspapers throughout the world. But what made Sykes's story particularly revelatory was his successful identification of a genetic descendant of the Ice Man, a woman living in Great Britain today. How was Sykes able to locate a living relative of a man who died thousands of years ago?In The Seven Daughters of Eve, he gives us a firsthand account of his research into a remarkable gene, which passes undiluted from generation to generation through the maternal line. After plotting thousands of DNA sequences from all over the world, Sykes found that they clustered around a handful of distinct groups. Among Europeans and North American Caucasians, there are, in fact, only seven. This conclusion was staggering: almost everyone of native European descent, wherever they may live throughout the world, can trace their ancestry back to one of seven women, the Seven Daughters of Eve.Naming them Ursula, Xenia, Helena, Velda, Tara, Katrine, and Jasmine, Sykes has created portraits of their disparate worlds by mapping the migratory patterns followed by millions of their ancestors. In reading the stories of these seven women, we learn exactly how our origins can be traced, how and where our ancient genetic ancestors lived, and how we are each living proof of the almost indestructible strands of DNA, which have survived over so many thousands of years. Indeed, The Seven Daughters of Eve is filled with dramatic stories: from Sykes's identification, using DNA samples from two living relatives, of the remains of Tsar Nicholas and Tsaress Alexandra, to the Caribbean woman whose family had been sold into slavery centuries before and whose ancestry Sykes was able to trace back to the Eastern coast of central Africa. Ultimately, Sykes's investigation reveals that, as a race, what humans have in common is more deeply embedded than what separates us.

    During our journey we will explore stories from Babylon, Greece, Ireland, Ethiopia, and various other cultures to fill in the missing pieces to one of the biggest mysteries on our planet. This 2nd Edition includes 40+ hours of additional audio and video content for your enjoyment. Make sure you download a free QR code scanner for your smart phone or tablet so you can take full advantage of the features in this book.

    Each object is plotted on a detailed, easy-to-use star map, and most of these sights can be found even in a light-polluted sky. Also included are four seasonal all-sky charts that help locate each highlight. You don't need fancy or expensive equipment to enjoy the wonders of the night sky. In fact, as even experienced star gazers know, to go beyond the naked-eye sky and delve deep into the universe, all you need are binoculars ? even the ones hanging unused in your closet. If you don't own any, Binocular Highlights explains what to look for when choosing binoculars for star gazing and provides observing tips for users of these portable and versatile mini-telescopes. Sprial-bound with readable paper spine, full color throughout.

    Jobs in the geosciences are expected to increase over the next decade, which will increase geology-related jobs well above average projection for all occupations in the coming years."Geology For Dummies" is the most accessible book on the market for anyone who needs to get a handle on the subject, whether you?re looking to supplement classroom learning or are simply interested in earth sciences. Presented in a straightforward, trusted format, it features a thorough introduction to the study of the earth, its materials, and its processes.Tracks to a typical college-level introductory geology courseAn 8-page color insert includes photos of rocks, minerals, and geologic marvelsCovers geological processes; rock records and geologic times; matter, minerals, and rock; and more"Geology For Dummies" is an excellent classroom supplement for all students who enroll in introductory geology courses, from geology majors to those who choose earth science courses as electives.

    Sixty-six million years ago, the Earth’s most fearsome creatures vanished. Today they remain one of our planet’s great mysteries. Now The Rise and Fall of the Dinosaurs reveals their extraordinary, 200-million-year-long story as never before.In this captivating narrative (enlivened with more than seventy original illustrations and photographs), Steve Brusatte, a young American paleontologist who has emerged as one of the foremost stars of the field—naming fifteen new species and leading groundbreaking scientific studies and fieldwork—masterfully tells the complete, surprising, and new history of the dinosaurs, drawing on cutting-edge science to dramatically bring to life their lost world and illuminate their enigmatic origins, spectacular flourishing, astonishing diversity, cataclysmic extinction, and startling living legacy. Captivating and revelatory, The Rise and Fall of the Dinosaurs is a book for the ages.Brusatte traces the evolution of dinosaurs from their inauspicious start as small shadow dwellers—themselves the beneficiaries of a mass extinction caused by volcanic eruptions at the beginning of the Triassic period—into the dominant array of species every wide-eyed child memorizes today, T. rex, Triceratops, Brontosaurus, and more. This gifted scientist and writer re-creates the dinosaurs’ peak during the Jurassic and Cretaceous, when thousands of species thrived, and winged and feathered dinosaurs, the prehistoric ancestors of modern birds, emerged. The story continues to the end of the Cretaceous period, when a giant asteroid or comet struck the planet and nearly every dinosaur species (but not all) died out, in the most extraordinary extinction event in earth’s history, one full of lessons for today as we confront a “sixth extinction.”Brusatte also recalls compelling stories from his globe-trotting expeditions during one of the most exciting eras in dinosaur research—which he calls “a new golden age of discovery”—and offers thrilling accounts of some of the remarkable findings he and his colleagues have made, including primitive human-sized tyrannosaurs; monstrous carnivores even larger than T. rex; and paradigm-shifting feathered raptors from China.An electrifying scientific history that unearths the dinosaurs’ epic saga, The Rise and Fall of the Dinosaurs will be a definitive and treasured account for decades to come.

    Get ready to unthink what you thought you knew and journey into the deep, dark depths of the Jurassic.The discovery of the first feathered dinosaur in China in 1996 sent shockwaves through the palaeontological world. Were the feathers part of a complex mating ritual, or a stepping stone in the evolution of flight? And just how closely related is T. rex to a chicken? Award-winning journalist John Pickrell reveals how dinosaurs developed flight and became the birds in our backyards. He delves into the latest discoveries in China, the US, Europe and uncovers a thriving black market in fossils and infighting between dinosaur hunters, plus the controversial plan to use a chicken to bring dinosaurs back from the dead.

    We assumed we could control the biological productivity of salmon and 'improve' upon natural processes that we didn't even try to understand. We assumed we could have salmon without rivers." --from the introductionFrom a mountain top where an eagle carries a salmon carcass to feed its young to the distant oceanic waters of the California current and the Alaskan Gyre, salmon have penetrated the Northwest to an extent unmatched by any other animal. Since the turn of the twentieth century, the natural productivity of salmon in Oregon, Washington, California, and Idaho has declined by eighty percent. The decline of Pacific salmon to the brink of extinction is a clear sign of serious problems in the region.In Salmon Without Rivers, fisheries biologist Jim Lichatowich offers an eye-opening look at the roots and evolution of the salmon crisis in the Pacific Northwest. He describes the multitude of factors over the past century and a half that have led to the salmon's decline, and examines in depth the abject failure of restoration efforts that have focused almost exclusively on hatcheries to return salmon stocks to healthy levels without addressing the underlying causes of the decline. The book:describes the evolutionary history of the salmon along with the geologic history of the Pacific Northwest over the past 40 million yearsconsiders the indigenous cultures of the region, and the emergence of salmon-based economies that survived for thousands of yearsexamines the rapid transformation of the region following the arrival of Europeanspresents the history of efforts to protect and restore the salmonoffers a critical assessment of why restoration efforts have failedThroughout, Lichatowich argues that the dominant worldview of our society -- a worldview that denies connections between humans and the natural world -- has created the conflict and controversy that characterize the recent history of salmon; unless that worldview is challenged and changed, there is little hope for recovery. Salmon Without Rivers exposes the myths that have guided recent human-salmon interactions. It clearly explains the difficult choices facing the citizens of the region, and provides unique insight into one of the most tragic chapters in our nation's environmental history.

    It contains meticulous trail descriptions that range from comfortable strolls for families to difficult treks for those looking for a challenging workout. Extensive key-at-a-glance information makes it easier to choose a hike based on length, difficulty, or scenery. A helpful list of hikes in the front of the book highlights those with special interests — best hikes for children, scenic hikes, hikes good for wildlife viewing, best hikes for runners, and more. Each hike report includes commentary on trailside geology, flowers, and wildlife. Historical notes provide fascinating details about early miners, trailblazers, the Pony Express, and Mormon pioneers. Whether lacing up boots, stepping into sneakers or strapping on snowshoes, Salt Lake City is a premier destination for outdoor adventure.

    There's no need to look through dozens of photos of birds that don't live in Ohio. This book features 111 species of Ohio birds, organized by color for ease of use. Do you see a yellow bird and don't know what it is? Go to the yellow section to find out. Fact-filled information, a compare feature, range maps and detailed photographs help to ensure that you positively identify the birds that you see.