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In program one we looked at how the natural features of the Murray-Darling Basin have shaped farming and water management practices, and how in turn those practices have changed the rivers and the land. In this second part of the series, we look at how over-allocation of water resources, climate change, salinity and other problems are threatening the long-term productivity and sustainability of the region.
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Forty years ago, on May 18, 1980, Mount St. Helens erupted violently. It was the most deadly and devastating eruption in U.S. history. Combining eyewitness accounts with rarely seen images, this show reveals the unfolding apocalypse — from the first moments of the volcanic blast to the 12-mile-high ash plume and the lethal mudflows that raged down the mountain.
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Wait a sec. Earth is hot on the inside? The continents move? And some German guy named Alfred Wegener noticed that Africa and South America fit together like puzzle pieces? That sounds like a magma-filled layer cake of mystery. Care to dig in? Topics include: Earth's Interior Layers, Plate Tectonics, and Evidence of Plate Tectonics.
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Reconstructing a dinosaur skeleton for a museum is a balance of art and science - enough science to keep the experts happy, enough artistic license to excite the visitors. But as it turns out, diplomacy is part of the balance as well. In this program, bioarchaeologist Alice Roberts goes to the Natural History Museum of Los Angeles County to follow the creation of its 2011 dinosaur exhibit, from the raw bones to the final colossal models.
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The collision zone of the massive Indian and Asian tectonic plates is one of the most seismically active places on Earth. These plates trace an arc beneath the Himalaya Mountains and run south below the Ganges-Brahmaputra Delta, an area that is inhibited by billions of people. This program follows earth scientists working in seven countries who are urgently investigating this high-risk zone.
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Who are we? Where do we come from? These are two of the biggest questions facing scientists today. This collection of short programs gives a broad understanding of the multi-branched theory of human evolution, the major geological eras in earth's history and the various scientific methods used for fossil dating. A great resource for viewers seeking a scientific understanding of how Earth and its life forms evolved.
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Over the many billions of years of the Earth's history our planet has never stopped changing shape. Massive tectonic forces have sculpted and re-sculpted our world in a never ending journey. Tectonics has created life - and destroyed it as well. Three tectonic collisions created Europe and continue to alter the continent's landscape. In this episode, we examine changes in Iceland and the Mediterranean Sea.
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Over the many billions of years of the Earth's history our planet has never stopped changing shape. Massive tectonic forces have sculpted and re-sculpted our world in a never ending journey. Tectonics has created life - and destroyed it as well. In this episode, we explore Europe's geological history. Discover ancient fossils, petrified forest and go diamond hunting in the depths of the earth.
9) Dino Autopsy
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Nearly everything we know of dinosaurs comes from bones and teeth-usually the only body parts durable enough to fossilize. This program highlights the scientific rewards resulting from a 1999 discovery of a virtually intact dinosaur mummy. Viewers will learn about the conditions that preserved the 67-million-year-old hadrosaur specimen as well as exciting details of what the creature looked like, how it moved, and more. The paleontologists involved...
10) The Challenger
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Trees once dominated the planet, but grasses eventually challenged their supremacy to become Earth's main form of plant life. In this program, Iain Stewart explains how it happened, and the impact the change had on mammalian evolution. Describing the link between sharp grass blades and the creation of an oxygen-rich atmosphere, Stewart takes viewers on a journey of discovery that includes a look at the Fongoli chimps, who adopt a human-like stance...
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Over the many billions of years of the Earth's history our planet has never stopped changing shape. Massive tectonic forces have sculpted and re-sculpted our world in a never ending journey. Tectonics has created life - and destroyed it as well. This program discusses the tectonic history of Asia, mass extinctions, the Himalayas and the creation of a country from its sediment.
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Allan Wilson, a groundbreaking researcher and a lightning rod for controversy, revolutionized science and galvanized the scientific community through his quantitative biochemical approach to the history of evolution. Drawing upon the insights and recollections of those who knew Wilson best, this program-narrated by paleoanthropologist Tim White, codiscoverer of the hominid "Lucy"-correlates milestones of his remarkable career with his enduring contributions...
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Over the many billions of years of the Earth's history our planet has never stopped changing shape. Massive tectonic forces have sculpted and re-sculpted our world in a never ending journey. Tectonics has created life - and destroyed it as well. This episode chronicles the Himalayas, investigates how Siberia joined other land masses, and discusses tectonic activity that impacts Japan and Indonesia.
14) New York
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In this program, viewers will learn how New Jersey and North Africa were once neighbors, how the rocks New York is built upon are the remains of prehistoric mountains once as tall as the Himalayas, and how Long Island is covered in rubble that accumulated as Ice Age ice sheets retreated 10,000 years ago.
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This program was designed to help viewers understand the commitment and everyday sacrifice of Americans during the Revolutionary War. To show the daily routine of the common soldier, an entire Continental Army camp was recreated and 250 soldiers-all authentically dressed and equipped-were recruited from several of the nation's leading military reenactment groups. Historian Burt Kummerow walks across the camp and among the soldiers to explain the background...
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Curiosity is often the driving force behind great discoveries. In this program, Friedemann Schrenk teams up with Meave Leakey to examine fossil specimens recovered at Lake Turkana, Lothagam, and Kanapoi, where they discuss the relationships between Australopithicus afarensis, A. boisei, and Homo habilis. Dr. Schrenk also visits the Nairobi Museum, the Anatomical Institute in Dar es Salaam, and Ngorongoro National Park. In addition, a meeting at Witwatersrand...
18) Australia
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Jimmy Doherty visits the wheat belt of western Australia in this program to see if farmers there can overcome the global problem of soil salinity. Next, he heads deep into the outback to catch wild animals - then takes a trip to the Murray-Darling river basin to see if its vineyards can still produce good wine despite now having only half as much water as in the past.
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Much of our understanding of climate change and the precarious state of the Earth's polar ice is due to the work of French glaciologist Claude Lorius. This program documents several of his missions to Antarctica and his primary innovation: heavy-hydrogen analysis of drilled ice core samples. Detailed interviews with Lorius and with several of his colleagues are interwoven with astonishing, rarely seen archival footage-steeping viewers in the lore...
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Of all places associated with the Revolutionary War, perhaps none is more revered than Valley Forge, the place where the poorly fed and ill-equipped Continental Army faced its darkest hour and its greatest challenge. And yet no history-changing battle was fought there. It was at Valley Forge that, during the winter of 1777-78, thousands of soldiers died of malnutrition, exposure, and disease - and a new army was born. This program examines archaeological...