and M.A. (Geography): Scholarships. highest national scholarship of Governemtn of India: Appointment-Geography Departemnt, Allahabad University, 1966: Present Status-Prof & Head of the Department of Geography: Foreign Visits-U.K. 1985, Germany 1989, Netherlands 1989. Contents : Nature of Geomorphology Fundamental Concpets in Geomorphology Theories of Landform Development Climatic Geomorphology and Morphogenetic Regions Constitution of the Earth's Interior Continents and Oceans Theory of Isostasy Rocks Earth's Movement Structural Geomorphology Plate Tectonics Vulcanicity and Landforms Mountain Building Weathering and Massovement Hillslope Cycle of Erosion, Rejuvenation and Polycyclic Reliefs Denudation Chronology, Erosion Surfaces and Peneplans Drainage Systems and Patterns Morphometry of Drainage Basins River Valleys, Graded River and Profile of Equilibrium Channel Morphology Fluvial Geomorphology Karst Geomorphology Coastal Geomorphology Arid and Semiarid Geomorphology Glacial Geomorphology Periglacial Geomorphology Regional Geomorphology Applied Geomorphology Anthropogenic Geomorphology References Index

    Guido Rahr’s mission to save the wild Pacific salmon leads him into adventures that make for a breathtakingly exciting read.”—Ian Frazier, author of Travels in SiberiaIn the tradition of Mountains Beyond Mountains and The Orchid Thief, Stronghold is Tucker Malarkey’s gripping chronicle of an unlikely visionary and his crusade to protect the world’s last bastion for wild salmon. From a young age, Guido Rahr was a misfit among his family and classmates, preferring to spend his time in the natural world. An obsessive fly-fisherman, Rahr noticed when the salmon runs of the Pacific Northwest began to decline—and was one of the few who understood why. As dams, industry, and climate change degraded the homes of these magnificent fish, Rahr saw that the salmon of the Pacific Rim were destined to go the way of their Atlantic brethren: near extinction.An improbable and inspiring story, Stronghold takes us on a wild adventure, from Oregon to Alaska to one of the world’s last remaining salmon strongholds in the Russian Far East, a landscape of ecological richness and diversity that is rapidly being developed for oil, gas, minerals, and timber. And along the way Rahr must navigate a tangled web of scientists, conservationists, Russian oligarchs, corrupt officials, impenetrable bureaucracies, and unexpected allies in order to set into motion a plan to secure the survival of the endangered salmon, an extraordinary keystone species whose demise would reverberate across the planet. Tucker Malarkey, who accompanies Rahr to the Russian wilderness and reports on events from up close, has written a clarion call for a sustainable future, a remarkable work of natural history, and a riveting account of a species whose future is closely linked to that of our own.“All fishermen know that we have to fight to save the waters we love. Stronghold tells a captivating story of the struggle to save the last great salmon rivers.”—Johnny Morris, founder/owner of Bass Pro shops, owner of Cabela’s

    In the widely acclaimed, bestselling Terra Incognita, she chronicled her quest to find a hidden history buried in Antarctica's extreme surroundings. Now, Wheeler journeys to the opposite pole to create a definitive picture of life on the fringes. In The Magnetic North, she takes full measure of the Arctic: at once the most pristine place on earth and the locus of global warming.Inspired by the spiraling shape of a reindeer-horn bangle, she travels counterclockwise around the North Pole through the territories belonging to Russia, the United States, Canada, Denmark, Norway, and Finland, marking the transformations of what once seemed an unchangeable landscape. As she witnesses the mounting pollution concentrated at the pole, Wheeler reckons with the illness of the whole organism of the earth.Smashing through the Arctic Ocean with the crew of a Russian icebreaker, shadowing the endless Trans-Alaska Pipeline with a tough Idaho-born outdoorswoman, herding reindeer with the Lapps, and visiting the haunting, deceptively peaceful lands of the Gulag, Wheeler brings the Arctic's many contradictions to life. The Magnetic North is an urgent, beautiful book, rich in dramatic description and vivid reporting. It is a singular, deeply personal portrait of a region growing daily in global importance.

    Open 365 days a year and unrestricted by the constraints of physical space, each title in this series is organized into galleries that display more than 200 full-color specimens accompanied by lively, informative text. Offering hours of learning, this first title within the series "Animalium" presents the animal kingdom in glorious detail with illustrations from Katie Scott, an unparalleled new talent.

    Most of Earth’s oxygen is produced by phytoplankton in the sea. These humble, one-celled organisms, rather than the spectacular rain forests, are the true lungs of the planet.• Climate control. Our climate is regulated by the ocean’s currents, winds, and water-cycle activity.Sea Sick is the first book to examine the current state of the world’s oceans — the great unexamined ecological crisis of the planet — and the fact that we are altering everything about them; temperature, salinity, acidity, ice cover, volume, circulation, and, of course, the life within them.Alanna Mitchell joins the crews of leading scientists in nine of the global ocean’s hotspots to see firsthand what is really happening around the world. Whether it’s the impact of coral reef bleaching, the puzzle of the oxygen-less dead zones such as the one in the Gulf of Mexico, or the shocking implications of the changing Ph balance of the sea, Mitchell explains the science behind the story to create an engaging, accessible yet authoritative account.From the Hardcover edition.

    Whether or not we take heed, these urgent crises of industrial agriculture will define our future.In Perilous Bounty, veteran journalist and former farmer Tom Philpott explores and exposes the small handful of seed and pesticide corporations, investment funds, and magnates who benefit from the trends that imperil us, with on-the-ground dispatches featuring the scientists documenting the damage and the farmers and activists who are valiantly and inventively pushing back. Resource scarcity looms on the horizon, but rather than pointing us toward an inevitable doomsday, Philpott shows how the entire wayward ship of American agriculture could be routed away from its path to disaster. He profiles the farmers and communities in the nation's two key growing regions developing resilient, soil-building, water-smart farming practices, and readying for the climate shocks that are already upon us; and he explains how we can help move these methods from the margins to the mainstream.

    Nearly 700 species of trees are detailed in photographs of leaf shape, bark, flowers, fruit, and fall leaves -- all can be quickly accessed making this the ideal field guide for any time of year. Note: the Eastern Edition generally covers states east of the Rocky Mountains, while the Western Edition covers the Rocky Mountain range and all the states to the west of it.

    Few people, however, know that research into tree rings has also made amazing contributions to our understanding of Earth's climate history and its influences on human civilization over the past 2,000 years. In her captivating new book, Tree Story, Valerie Trouet reveals how the seemingly simple and relatively familiar concept of counting tree rings has inspired far-reaching scientific breakthroughs that illuminate the complex interactions between nature and people.Trouet, a leading tree-ring scientist, takes us out into the field, from remote African villages to radioactive Russian forests, offering readers 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.Blending popular science, travelogue, and cultural history, Tree Story highlights exciting findings of tree-ring research, including the fate of lost pirate treasure, successful strategies for surviving California wildfire, the secret to Genghis Khan's victories, the connection between Egyptian pharaohs and volcanoes, and even the role of olives in the fall of Rome. These fascinating tales are deftly woven together to show us how dendrochronology sheds light on global climate dynamics and uncovers the clear links between humans and our leafy neighbors. Trouet delights us with her dedication to the tangible appeal of studying trees, a discipline that has taken her to austere and beautiful landscapes around the globe and has enabled scientists to solve long-pondered mysteries of Earth and its human inhabitants.

    Prized as “the best stone in Britain” by Roman invaders who carved jewelry out of it, coal has transformed societies, expanded frontiers, and sparked social movements, and still powers our electric grid. Yet coal’s world-changing power has come at a tremendous price, including centuries of blackening our skies and lungs—and now the dangerous warming of our global climate. Ranging from the “great stinking fogs” of London to the rat-infested coal mines of Pennsylvania, from the impoverished slums of Manchester to the toxic streets of Beijing, Coal is a captivating narrative about an ordinary substance with an extraordinary impact on human civilization.

    From the Sierra Nevada, the Mojave Desert, the Yucatan Peninsula, and the Bahamas to her home ground on the high plateaus and deep canyons of the Southwest, we journey with Meloy through vistas of both great beauty and great desecration. Her keen vision makes us look anew at ancestral mountains, turquoise seas, and even motel swimming pools. She introduces us to Navajo “velvet grandmothers” whose attire and aesthetics absorb the vivid palette of their homeland, as well as to Persians who consider turquoise the life-saving equivalent of a bullet-proof vest. Throughout, Meloy invites us to appreciate along with her the endless surprises in all of life and celebrates the seduction to be found in our visual surroundings.

    Michael Grunwald, a prize-winning national reporter for The Washington Post, takes readers on a journey from the Ice Ages to the present, illuminating the natural, social and political history of one of America's most beguiling but least understood patches of land.

    The book argues for a realization of the finite nature of our resources, and the impact should we continue squandering them.

    To the philosophical the  earth is eternal, while the human race -- presumptive  keeper of the world's history -- is a mere speck  in the rich stream of life. It is known that  nothing upon Earth is forever; geography, climate, and  plant and animal life are all subject to radical  change. On five occasions in the past, catastrophic  natural events have caused mass extinctions on  Earth. But today humans stand alone, in dubious  distinction, among Earth's species: Homo  Sapiens possesses the ability to destroy  entire species at will, to trigger the sixth  extinction in the history of life. In The Sixth  Extinction, Richard Leakey and Roger Lewin  consider how the grand sprawl of human life is  inexorably wreaking havoc around the world. The  authors of Origins and  Origins Reconsidered, unimpeachable  authorities on the human fossil record, turn their  attention to the most uncharted anthropological territory  of all: the future, and man's role in defining it.  According to Leakey and Lewin, man and his  surrounding species are end products of history and  chance. Now, however, humans have the unique  opportunity to recognize their influence on the global  ecosystem, and consciously steer the outcome in order  to avoid triggering an unimaginable upheaval.From the Hardcover edition.

    A detour from U.S. 66 to visit the Grand Canyon on a June morning in 1963 inspired Fletcher to walk the length of the Canyon below the rim. It is also a record of the Grand Canyon as it was before the massive influx of tourism. Fletcher's descriptions of the spectacular geography, the wildlife, and the remnants of much older cultures serve to remind us that the Grand Canyon has been around longer than humankind and may well outlast us.

    From India's sacred banyan tree to the fragrant cedar of Lebanon, they offer us sanctuary and inspiration – not to mention the raw materials for everything from aspirin to maple syrup.In Around the World in 80 Trees, expert Jonathan Drori uses plant science to illuminate how trees play a role in every part of human life, from the romantic to the regrettable. Stops on the trip include the lime trees of Berlin's Unter den Linden boulevard, which intoxicate amorous Germans and hungry bees alike, the swankiest streets in nineteenth-century London, which were paved with Australian eucalyptus wood, and the redwood forests of California, where the secret to the trees' soaring heights can be found in the properties of the tiniest drops of water.Each of these strange and true tales – populated by self-mummifying monks, tree-climbing goats and ever-so-slightly radioactive nuts – is illustrated by Lucille Clerc, taking the reader on a journey that is as informative as it is beautiful.