This video discusses types of plants, differentiates between vascular and non-vascular plants, lists adaptations for living on land, and looks at the function of roots and leaves. It also examines the classes of bryophytes and considers the effects of clay and sand in soil on plants.

This video looks at the processes of transpiration and guttation, illustrates two types of plant movements, and differentiates between positive and negative tropism. It also considers nutrients plants need for survival.

Making plentiful use of animation, this comprehensive video clip library of 32 two- to three-minute segments brings plant biology to life! Visual learners will particularly benefit from the intricate processes and key botanical concepts illustrated in each self-contained video. A versatile teaching tool, Plant Biology is also an excellent student research resource.

Human impacts on the way our planet functions have now become so extreme that many scientists are claiming the Earth has shifted out of the Holocene state and into a new geological epoch. They’re calling it "The Anthropocene", the new age of humans...

The use of technology to improve or repair our environment may be the least controversial area of research. Who can argue with clean water and saving endangered species? This film explores the technology that may be used to improve our understanding of the environment and conquer the destructive powers of nature as well as enhance its beauty. Part of the series The Future Of… (Series 1).

Despite great strides made in reducing point source pollution, America still has 300,000 miles of rivers and streams and 5 million acres of lakes that remain contaminated. This documentary examines how coastal and inland communities across the country are turning their attention to controlling non-point source pollution through watershed management and TMDL—total maximum daily load—programs. Water quality assessment, development of a pollution abatement plan, plan implementation, and follow-up monitoring are presented. Community education is cited as the key to successful long-term remediation.

This episode of The Green Interview features Alanna Mitchell, an award-winning Canadian author, journalist, and speaker on environmental science, conservation, and sustainability. After nearly two decades as an investigative journalist, Mitchell perfected her gift for decoding the complicated language of science and translating it into the emotional narrative of everyday life. Her latest book, Sea Sick: The Hidden Crisis in the Global Ocean, interweaves scientific concepts with firsthand accounts and fieldwork stories to examine the ecological crisis facing the world's oceans—and how we're altering temperature, salinity, acidity, ice cover, and the very life within them.

Planet Earth is often called "The Blue Marble." From space, it practically glows with a bright blue hue and swirls of white clouds. From a distance, it appears to be full to the brim with water. It's not until you take a closer look that you discover that despite its surface being covered with water, there is very little water to drink. Saltwater oceans dominate 97 percent of the water on Earth. Glaciers at our polar caps lock up 2 percent of our fresh water. Our population of 7 billion people and millions of animal species share just 1 percent of the water available on our planet. With climate change savaging weather systems and our population steadily rising, scientists and engineers all over the world are struggling to create local solutions for the growing global water problem.

Across the world, plants and animals are silently finding their way into places where they don’t belong. These interlopers, upon which scientists frequently bestow the term invasive species, have been known to display fearsome powers—including uncanny abilities to spread disease, damage soil, even devour buildings. This program examines the dangers posed by invasive species and the roles they are playing in an epic rearrangement of life on Earth. Part of the series Strange Days on Planet Earth. A National Geographic Production.

The third largest freshwater lake on the planet has been invaded by numerous exotic species over the last century. "Lake Invaders: The Fight For Lake Huron" is a documentary which explores the threat to Lake Huron's ecosystem and the innovative solutions employed by biologists. Biologists from around the Great Lakes describe invaders such as the sea lamprey, alewife, zebra mussel, etc.

Microscopic insect photography brings to life a vibrant world within our own, teaming with diversity and all around us but never seen. From the multi-colored snouted snail to the ghost shrimp, this documentary beautifully depicts how little things live.

Have Earth’s vibrant waterways—its streams, rivers, lakes, and oceans—become delivery systems for pollutants and poison? This program points to signs that toxic substances are overwhelming our planet’s aquatic ecosystems. Viewers encounter many of the causes for this concern, including a radical decrease in frog populations, distressed marine mammals in estuary habitats, and disturbing changes in reef biodiversity. Part of the series Strange Days on Planet Earth. A National Geographic Production

In this program, geologists delve deep into an underground salt mine, investigate a fossilized coral reef, climb an Alpine glacier, and dive to the bottom of Lake Superior - all to understand the evolution of the Great Lakes.

It takes a thousand years to form a single inch of soil. It is a fragile layer on the surface of the land—yet essential to all life on Earth. But where did soil come from and how was it made? Gardening expert Chris Beardshaw reveals the secrets locked within soil.

Beneath our feet lies a world of violence, death, and renewal—the soil. This program takes viewers deep inside that unseen realm, focusing on the chemical and ecological complexity that enriches soil and sustains plant and animal life. A wide array of fungi, microorganisms, insects, and small animals are examined, illustrating the roles they play in the development of root systems and eventually the farms and forests humans need to survive. Highlighting the use of organic fertilizers and pesticides, the program shows that the medium in which life grows and dies is more than the sum of its parts, and that, although the true importance of soil is rarely visible, it must not be taken for granted.