Drinking water pollution can cause many deadly diseases, especially in children of poor countries around the world. Learn how student fundraisers and field scientists from the U.S. have helped indigenous peoples develop water treatment systems using their own technologies. More Details

A huge bottled-water industry has recently emerged, with the U.S. its largest consumer. A blind taste test by young students suggests that most people cannot tell the difference between tap and bottled water. This program poses questions to the theory that bottled water is better for us and the environment. More Details

In the U.S., polluted waters can have damaging economic and social effects, as well as destroy environmental habitats. The Chesapeake Bay is one of the most polluted watersheds in America, but Baltimore-area students are working with commercial crab catchers and scientists in the Baltimore area to help restore its health. More Details

The Rio Grande is one of our longest rivers, its Texas section forming a natural border between the U.S. and Mexico. Competing human claims for it are viewed through the eyes of two young women: a whitewater rafting guide in upstream New Mexico and a teenager downstream near El Paso. More Details

Fair distribution of water has long been a worldwide problem. The Great Lakes contain 20% of the world’s fresh surface water, but that water is currently available to only a small portion of our population. Should other water-scarce regions have access to this water? What effect would the piping of Great Lakes water to other areas have on the lakes and on Midwestern environments? More Details

Despite its wonders, Earth's water cycle does not spread water evenly around the planet. The Ogallala Aquifer’s huge underground reservoir of water gives states such as Nebraska a large but limited irrigation source. Experience how one progressive farm family uses technology to conserve water while producing higher food yields and profits. More Details

This program is about the air that is covering the earth. Air’s weight pressing on the Earth is called atmospheric pressure, and it contributes to weather patterns, as does the sun; together they “drive” the process of weather and make life on earth possible. More Details

Today, two-thirds of the world’s humans live near coasts. The Mediterranean coastal climate is so mild that many civilizations were born here, and still thrive. But summer’s dryness often results in fierce fires. More Details

Desert regions have hot, dry climates where rain sometimes comes only once every few years. Subtropical climates can also be dry and hot, such as in the thorny Australian bush country. More Details

The tropics are the region of rainforests and savannahs. Tropical rainforests are very warm and humid throughout the year. In a savannah, there is also little variation in seasons. But the dry climate means fewer trees and more grass, so savannahs are home to herds of large animals. More Details

The weather changes every day. Climates also change, but slowly—over centuries or even millennia. The earth has had cycles in which ice ages alternate with periods of warmth. These cycles have always been natural phenomena, but humans may be responsible for the current bout of global warming. More Details

Explore the adaptations that people, plants, and animals have made to survive in the harsh climates of mountains and steppes. In high mountainous regions there is snow cover for many months of the year, but some plants and animals have adapted to this frigid environment. More Details

Oceans act as temperature regulators, bringing mild weather to coastal areas. The moderate temperatures and moisture-laden winds of coastal and island environments are optimal conditions for living things, so islands have been widely colonized by plants, animals, and humans. More Details

This program explores the Earth's polar and subpolar regions and describes the people, plants, and animals that live there. Computer animations show how the angle of the earth’s axis produces the “land of the midnight sun” and how the planet's magnetic field causes the aurora borealis, or northern lights. More Details

Live-action film footage, maps, and computerized animations help explain the reasons for the summer monsoon season in South Asia. Both the positive and negative effects of the monsoon are covered, life-giving water for the region's rice crops and misery for the many people who are flooded out of their homes. More Details

With the aid of computer animations, this program explains how cumulonimbus clouds develop into thunderstorms and how cyclones or hurricanes form over tropical oceans. Tornadoes occur over landmasses—especially in the United States—and cover a much smaller area than cyclones or hurricanes. More Details

Live-action film footage, maps, and computer animations introduce the climate of temperate regions in Europe and compare them the continental regions of both Europe and North America. More Details

Humidity has helped life develop on Earth. The water cycle, the process of evaporation, condensation, and precipitation, leads to the formation of clouds and to water falling as rain, snow, fog, mist, drizzle, and other solid or liquid types. More Details

Explore the causes of global winds, including the daily rotation of the earth on its axis, the changing seasons, and the uneven heating of the Earth’s surface by the sun. A section on weather forecasting stresses the importance of accurate observations and explains the pivotal role of satellite imaging and computer modeling in predicting the weather. More Details

Explore the inner part of Earth’s solar system, starting with the Sun and its structure. Fly over and experience the contours of Mercury, Venus, and Mars, and learn how gravity and momentum keep the planets orbiting around the Sun elliptically, as first revealed by Kepler. More Details

In order for viewers to grasp the size of Earth’s galaxy, this program first lays out the concept of light years. Comparisons with earthly time frames helps viewers understand that the light from distant stars is actually elapsed cosmic time. More Details

Experience the cosmic wonder of a universe expanding at phenomenal rates, as discovered by Edwin Hubble in the 1920's. More Details

This program will help viewers grasp the significance of water as never before. Without this bond of three atoms, life, in its current form, would not exist. More Details

Experience the world of plants as the essential foundation of life on earth. Their beauty is shown, as are their functions, such as providing food, clothing, and shelter. More Details

Find out why the solid-seeming earth is actually a changing body, constantly destroying and rebuilding itself. Tectonic plates’ movements are clearly demonstrated as the source of these alterations through exciting live-action and computer graphic images. More Details

The linear chain of volcanoes around the Pacific Ocean is called the "Ring of Fire." Expanding upon the theory of plate tectonics, this program uses live-action and computer-graphic images to show how plates constantly collide or pull apart, causing molten rock beneath the surface to well up from time to time, forming volcanoes. More Details

Severe weather’s sources are the same as those for all weather patterns. The sun's energy, along with the earth's rotation, is demonstrated graphically as the driving force behind circular wind motion. More Details

Why is the southern Middle West of the United States particularly prone to tornadoes? In spring, the collisions of still-frigid winds from Canada with the warm upwelling breezes from the Gulf of Mexico create thunderstorms. If these collisions accelerate, supercells of even faster rotations occur, creating more upwelling and circulating, with hail and a funnel forming. More Details

Powerful weather and the water cycle's part in it are explored together in this production. The cycle often results in warm and cold air masses battling against each other along boundaries or fronts. More Details

Six case studies show how young students and professionals are helping to solve the growing problems of widespread overuse and abuse of our planet’s most precious and limited resource: water. Both the positive and negative scientific and social implications of water's utilization are explored in this cross-curriculuar resource. More Details

The world's climates and weathers range from arctic to tropical, from desert to monsoon. Live-action, on location footage from around the world and computer animated graphics take you inside the environmental adaptations of those who live in each of these regions. More Details

Designed to introduce key earth science concepts, this series also gives an overview of the interactions of life on earth and our planet's place in the universe. More Details

Cattle were among the earliest animals domesticated by humans due to their lack of flight response and to their herding behavior. Their ruminant stomach biology, which allowed them to eat almost anything and convert it into the food, milk, clothing, and fertilizer that humans need, also made them essential to the rise of civilization. More Details

Death Valley is the largest National Park and the most extreme desert biome in the lower 48 states. Its hot, dry landscape and climate force plants and animals into extreme adaptations for survival. Some animals such as kangaroo rats recycle their own moisture, while the jackrabbit has developed huge ears that wick away heat. More Details

New scientific evidence suggests that some wolves evolved into dogs by domesticating themselves, and not by humans taming them. This program features stunning evidence that dogs have travelled, and been buried, with humans since prehistory—adapting to every climate and evolving into many subspecies or types of the same dog species (Canis lupus familiaris). More Details

Winner of the Peabody Award, this fascinating program explores one of nature’s most baffling ecological mysteries: Why have millions of honeybees recently disappeared? While not as publicized as climate change, the effects of this crisis on human life could be felt sooner and more severely, with billions of dollars of crops at risk and our most healthful & colorful food supply threatened. More Details

Underwater cameraman Bob Cranston captures mesmerizing footage of one of the most ancient animal classifications on earth: Cephalopods, marine mollusks related to snails and clams. Their complex behaviors, astonishing body adaptations and, especially, their compelling eyes, could be from an alien science fiction world. More Details

Most people think of venom as something to be avoided at all costs since some animals use it to kill other animals or humans. But modern researchers now use scientific methods to study animal toxins, and they have discovered that the thousands of venom types on planet earth may help cure or control many human ailments, from chronic pain to life-threatening bleeding to cancer and Parkinson’s disease. More Details

The Grizzly Bear, America’s largest, most spectacular predator, was on the brink of extinction in Yellowstone National Park until the 1975 Endangered Species Act made its recovery the biggest success story in conservation history. More Details

The Druid clan, so-named by scientific researchers, had been one of the largest and most powerful packs ever studied. When their dominant alpha leaders are killed, their reign over Yellowstone National Park’s spectacular Lamar Valley comes to a sudden end. More Details

The many aspects that makes the Yellowstone National Park one of America's scenic treasure. More Details

The geological features that make Grand Canyon National Park a scenic wonder with its rich habitat that lives within the park. More Details

The geological history of tourist spots and the environmental conditions of Yosemite. Presented as a vast ecosystem with over 300 species of wildlife. More Details

The United States of America became the first country in history to put aside public lands solely for the enjoyment and education of its people, and not for economic purposes, when Yellowstone, Yosemite, and Grand Canyon National Parks were established. This idea also led to the Conservation Movement, another American first that has inspired parks and Ecological-Environmental thinking worldwide. More Details

NATURE is television’s longest-running and most acclaimed natural sciences series. These programs will enthrall students with their stunning visuals, dramatic narrations, and engrossing true stories, as well as please educators with their strong instructional and content designs. More Details

The United States of America became the first country in history to put aside public lands solely for the enjoyment and education of its people, and not for economic purposes when Yellowstone, Yosemite, and Grand Canyon National Parks were established. This idea also led to the Conservation. More Details

Around the globe, unique and fascinating species face extinction from hunting and habitat destruction. George, a Pinta Island tortoise from the Galapagos Islands, is the very last of his kind. Other species were on their way to joining George as the last of their kind -- until help arrived. More Details

In Hawaii, where new land is born as volcanic rock, another birth takes place. A baby humpback enters the world and joins 3,000 or more whales that congregate here each winter to mate and give birth in protected bays and coves. This is the story of her first year of life. More Details

Frogs have inhabited planet Earth for more than 250 million years. Today, however, all their remarkable adaptations and survival tactics are failing them. More than a third of all amphibians--most of which are frogs and toads--have already been lost. More Details

Ejecting fire, molten rock, giant boulders and poisonous gases, Kilauea can be a hazard, but it doesn't just leave destruction in its wake. Twists and turns in the lava's flow leave some patches of original ecosystems, called kapukas, undisturbed. These oases of life provide a haven to many rare creatures, but remain in constant danger from the volcano and from invasive species. More Details

The natural world is filled with "moments of impact" -- the split seconds when animals come into contact with one another and the world around them. This program reveals what’s behind these remarkable moments, and cutting edge animations illustrate the animal bioengineering that allows each moment to take place. More Details

Filmmaker Allison Argo tells the fascinating story of nature's amazing ability to create fragile connections among the most unexpected creatures. Each year, the red knot, a small shorebird that instinctively times its migration to coincide with the annual spawning of the horseshoe crab. More Details