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The arctic ground squirrel has developed highly specialized adaptations to extreme environments. This species maintains circadian rhythms throughout the arctic summer, despite the almost ceaseless daylight during this period. The squirrels’ body clocks have evolved to work just fine without the help of the day/night cycle. With support from the National Science Foundation, physiological ecologist Cory Williams of the University of Alaska, Anchorage, and a team of researchers traveled to the Toolik Field Station in northern Alaska to study the arctic ground squirrel on its home turf. Part of the National Science Foundation Series “Science Nation.”
(Source: DCMP)
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. "Where did the hot go?" wonders Arnold when he finds that his hot cocoa has cooled. In response, Ms. Frizzle whisks the class to the Arctic. What's the freezing Arctic got to do with heat? While the kids try to find out, the bus's engine freezes and the bus floats away. As the bus moves away, so does the heat from everyone's body. How can Ms. Frizzle's kids insulate their body to keep the heat in?
Since the last ice age, plants in the Alaskan Arctic have been taking carbon out of the atmosphere and locking it away in the soil. But now, the permafrost is starting to thaw. That means all those microbes are about to find themselves at an all-you-can-eat carbon buffet. With support from the National Science Foundation, ecologist Matthew Wallenstein and a team from Colorado State University have come to the Toolik Field Station, deep inside the Arctic Circle, to drill soil cores for study. The researchers are trying to find out more about how microbes in the soil are cycling carbon from the Earth to the atmosphere. Part of the National Science Foundation Series “Science Nation.”
Welcome to Barrow, Alaska, where a team of marine ecologists gears up to hit the sea ice that is actually teaming with marine life. With support from the National Science Foundation (NSF), Craig Aumack of Columbia University and a team have come here to investigate how algae in the sea ice contributes to the underlying marine ecosystems, and which marine organisms depend on the algae for nutrition. Part of the National Science Foundation Series “Science Nation.”
The National Science Foundation in cooperation with the Marinette Marine Corporation (MMC) and the University of Alaska, Fairbanks has successfully launched the R/V Sikuliaq, a next-generation global class research vessel. MMC is the Wisconsin shipyard that built the ship, with funding provided by NSF through the American Recovery and Reinvestment Act of 2009. UAF's School of Fisheries and Ocean Sciences will operate the ship as part of the U.S. academic research fleet. The new vessel's name, Sikuliaq, pronounced “see-KOO-lee-ack,” is an Inupiat word meaning young sea ice. Part of the National Science Foundation Series “Science Nation.”
The Canadian Arctic is ground zero for understanding the rapidly changing environment. Working in remote regions, scientists are using space-age technology with on-the-ground fieldwork and traditional Inuit knowledge to get the most detailed picture yet of the Arctic.
The Arctic Sea Ice, a plate of ice roughly the size of Europe, is disappearing. Explores, with the company of scientists, the fabled Northwest Passage. Provides an overview of how polar bears, seals, and arctic birds are struggling to adapt to the rising temperature and their shrinking terrain. But beyond the wildlife, there are concerns about the effect the melting ice cap has on human life.
Black carbon is the fancy name for soot, and it is causing changes in the Arctic climate. It comes from the burning of fossil fuels. Studies suggest that black carbon is contributing to the acceleration of sea ice melting in the Arctic, and the loss of this ice would lead to more rapid warming and possibly irreversible climate change.
Climate change is threatening the survival of the polar bears in the Arctic. Humans can take action to help reduce the negative effects of climate change and preserve the polar bears' habitat. In this episode, students learn a variety of energy-saving tips to help them reduce energy consumption in an effort to reduce the effects of global warming. Part of the "Saving a Species" series.
Scientists and researchers are working to understand the possible effects of Antarctic ice melt on global processes. Some areas that might be impacted include currents, water chemistry, and biological balance.
Learn about the difference between weather and climate. Students investigate how glaciers are formed and where they are located. Part of the "Ice Cores: Unlocking Past Climates" series.
This video explains how scientists choose which glaciers to study and why they collect ice cores from glaciers. It shows the process of collecting and transporting ice cores to a research base and preparing the cores for scientific study. Part of the "Ice Cores: Unlocking Past Climates" series.
Before the start of the Eocene Epoch about 56 million years ago, Antarctica was still joined to both Australia and South America. During this time, Antartica was without ice and snow. Fossil records indicate it was covered in green foliage. Part of the "Eons" series.
The climate of the ocean may not be as harsh as once thought. Maritime archaeologists are discovering well-preserved ship wrecks. These sites are providing information about cultures, technologies, and histories of past civilizations. Part of the "Adventures of a Maritime Archaeologist" series.
Glaciers reveal past events and record time in much the same way that tree rings record past climate data. In this episode, students will learn how an ice core provides a record of past climates. Part of the "Ice Cores: Unlocking Past Climates" series.
This video focuses on important characteristics of climate and explains how ice cores tell the story of climate change. It also clarifies the concept of proxies and reveals the measures that climate scientists use as proxies. Part of the "Ice Cores: Unlocking Past Climates" series.
Host Steve Backshall takes a look at the archipelago of Svalbard in the Arctic Circle and tries to unlock exactly how life can exist in such a cold, dark place. He discovers that the whole ecosystem is driven by the primary producers at the bottom of the food chain. Part of the "Nature's Microworlds" series.
Scientist are concerned about the decreasing mass of the world's glaciers. Due to numerous environmental factors, glaciers that were once abundant in the Northern regions are now half of their original size. Climate change has become a very real and dangerous impact for the planet. Part of the "Glacier Series."
Glaciers are one of the main driving forces affecting Earth's climate and landscape. These massive sheets of ice are constantly moving and changing, and warming temperatures are causing most glaciers to recede. Located in some of the most inhospitable areas of the planet, scientists are venturing to glaciers to study them and looking for clues from past and present changes in climate. Part of the "Glacier Series."
What are explorers? What do they do? What skills do they need? Is exploring done today? How can students be explorers? Following a summary of the 18-month Lewis and Clark expedition, elementary students learn about Will Steger, contemporary arctic explorer. Emphasizes the importance of keeping a journal to record what is seen and heard. Students explore nearby woods and share their discoveries.
