Forces of Nature

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Wonders of the National Parks - A Geology of North America
In 1872, a wondrous region called Yellowstone was set aside as the world's first national park, giving adventurous travelers access to a geologist's paradise that seethes with pent-up volcanic forces. As more and more national parks were created--not just in the United States but also in Canada and Mexico--geologists were…
Generation Earth
BBC
In just one generation, we have transformed the face of our planet. Featuring the most ambitious and audacious engineering projects on Earth, this series captures the power of human ambition and ingenuity. From a distance, Planet Earth looks the same as it has done for millions of years. But take…
Root Hog or Die
From early Colonial times, the rural hilltowns of New England have been home to generations of dairy farmers. They earned their living through a remarkably varied combination of seasonal activities and incessant daily chores -- maple sugaring, plowing, planting, cultivating, haying, logging, clearing fields, building stone walls, mending fences, harvesting…
Physical Geography II: Fossils, Rocks & Time
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. People who study Earth's history use a type of calendar called the geologic time scale. It looks very different from the familiar calendar. In some ways it is more…
Plant This Movie - The Urban Agriculture Revolution
Featuring leading urban farming advocates, the film explores the inspiring success story of Cuba, and travels globally to communities of urban farmers in Shanghai, Calcutta, Addis Ababa, London, and Lima. In the US, the film visits innovative projects in New York, New Orleans, Los Angeles, Berkeley, Philadelphia and Portland -…
Physical Geography II: Collecting Rocks & Minerals
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. The Earth is made of rock from the tallest mountains to the floor of the ocean. Rocks are all around most of us. Thousands of different types of rocks…
Physical Geography II: Geomorphology: Study Of The Shape Of The Earth
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. This program introduces students to the various forces, which have shaped our earth. These include wind, running water, glaciers, volcanoes, temperature changes, gravity, ocean currents, faulting and folding. The…
Physical Geography II: Geology Of Caves & Caverns
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. This program illustrates what water can do below the earth's surface, over long periods of time. Using animated and real life sequences, this program explores some important caves, their…
Physical Geography II: Why Is The Ocean Salty
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. All water, even rainwater contains dissolved chemicals which scientists call "Salts." These salts eventually wash down into rivers and streams and eventually find their way into oceans and seas.Subjects…
Physical Geography II: Glaciers: Clues To Future Climate
Part of the Series: Physical Geography II Series
Discover The Wonders of Our Earth and the forces and life forms that shape our world with the Physical Geography Series. Present day glaciers have considerable economic importance in many areas. In the Western United States glaciers are considered to be frozen reservoirs which release water during the warmer summer…
Crater Lake, Olympic, North Cascades
Learn how seafloor subduction raised a lofty volcano only to obliterate it in a colossal eruption that created Crater Lake in Oregon. Hundreds of miles to the north, tectonic forces upended the imposing mountains of Olympic National Park and formed the high jagged peaks at North Cascades National Park.
Staying Alive
Part of the Series: Generation Earth
Astounding engineering, mining and farming projects have pushed further and deeper into our planet to provide for our ever-increasing population. From the construction of the planet's largest aqueduct, soon to re-route China's waterways, to the world's largest array of greenhouses, covering hundreds of square kilometres of southern Spain in plastic,…