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Content

Energy Issues


Energy Issues



CHESHIRE, OHIO: AN AMERICAN COAL STORY IN 3 ACTS

Directed by Eve Morgenstern

Follows a community devastated by coal, starting with American Electric Power's buyout and bulldozing of this Ohio River town, after exposing them to years of harmful emissions.

A gun toting 83-year old woman refuses to sell her house to the power plant next door but the plant has moved ahead with their 20 million dollar deal to buy out most of Cheshire and bulldoze all the homes. What happened in this Ohio River town overrun by one of the largest coal-fired power plants in the world? A story of money, power and the increasingly difficult choices we face surrounding coal and the environment, CHESHIRE, OHIO makes us think twice about home.

Filmed over a decade, CHESHIRE, OHIO follows a community devastated by coal, starting with American Electric Power's buyout and bulldozing of this Ohio River community after exposing them to harmful emissions, and then returning several years later to the now almost emptied town as we follow the case of 77 plaintiffs who have filed a lawsuit against American Electric Power for cancer and other diseases they developed from working unprotected at the plant's coal ash landfill site.

As the cycle of pollution from coal continues, we see how one quintessential American town suffers from our reliance on carbon energy.


DVD / 2017 / (Grades 7-12, College, Adults) / 75 minutes

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GOOD THINGS TO DO

There is one island that is eco-sustainable now.

Can it teach its entire nation to be eco-sustainable by 2030?

Can that nation then teach the world?

GOOD THINGS TO DO is a film from the bright side of renewable energy. It is the work of Barbara Ferrari And Thomas Peres.

Our planet's quest for sustainability takes many forms, but one such effort has yielded results that could very well teach all of us methods of success.

The Danish island of Samso is an experimental site for renewable energy production: wind turbine farms; biomass power plants; and solar panels. All are used to generate electricity, heating and hot water for the island's population, farmers, and tourism operators who have invested in this green revolution and have set out to show the world that Denmark can change our relationship with energy resources.

The mission is to make Denmark completely eco-sustainable by 2030.


DVD (With Italian Subtitles) / 2017 / 35 minutes

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SMART IDEA - ENERGY

Humankind is facing the challenges of the 21st century by being inventive, innovative, imaginative, concerned, thoughtful, determined and courageous. This series confirms the future is now as we see hundreds of smart ideas of scientists, technologists, engineers, artists, designers and some just common-sense thinkers from all around the world have turned into everyday realities.

Wind Farms
Offshore
New Windfarms
Cleaner Coal Energy
Future Fuels
Bio-Oil
Bio Fuel
Solar Energy
Hydrogen Production
Renewable Energy
Energy Efficiency
Remote Solar Power


DVD / 2016 / 30 minutes

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INVENT - ENERGY INNOVATIONS

This engaging series presents ingenious ideas and innovations invented in the 21st century and now being utilized around the world.

DVD / 2015 / 30 minutes

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DEBATING ENERGY FUTURES: COAL, GAS AND NUCLEAR

With case studies from the US, the UK, China and India, this title asks how important coal, gas and nuclear will be in the future global energy mix. Find out what is being done to clean up coal, the dirtiest of all fossil fuels. With the growth of fracking in the US improving energy security in the States, what are the potential benefits and environmental risks associated with it in the UK? And why is nuclear still considered to be an attractive option by some countries, despite the Fukushima disaster?

DVD / 2014 / 34 minutes

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GAS WEAPON, THE

By Alex Shiriaieff

Ukraine uses more natural gas per capita than any other country in the world. Half the economy is built around a seemingly endless and reliable supply of cheap gas, and a significant percentage of Ukraine's tax money goes to heavily subsidizing household gas prices.

But that cheap gas comes from Russia, which has made no secret of its willingness to use it as an economic weapon.

THE GAS WEAPON is a clear and much-needed examination of how Ukraine and, to a lesser extent, much of Europe are dependent on Russian gas - and the role gas plays in recent Ukrainian politics.

Gazprom, the giant Russian company largely owned by the government, delivers its natural gas to Europe through a network of pipelines, some of which pass through Ukraine. Gas prices per country vary according to an opaque formula - one that seems to offer better deals to the most compliant governments.

Featuring interviews with high-level government officials, journalists and industry analysts from several countries, THE GAS WEAPON argues that a generation after its break from the USSR, Ukraine is independent in name only. To bring the country to its knees, all Russia has to do to is turn off the gas - as it did briefly in the winters of 2005 and 2009.

Recent events in Ukraine and Russia have played out against the backdrop of the gas wars. The Euromaidan protests that drove pro-Russian president Viktor Yanukovich from power may also have marked a new willingness on the part of Ukrainians to seek new sources of energy and assert their independence - even if it means paying higher prices.

While the political and economic implications are complex, THE GAS WEAPON offers clear and insightful analysis, making it a valuable tool to understand the impact of natural gas on current European politics.


DVD (Color) / 2014 / 52 minutes

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GLOBAL ENERGY SECURITY

What makes some countries more energy secure than others and what are the strategies that can be pursued to improve security? With video case studies from the EU, Iceland, China, India, Canada and the US, this resource provides students with a wealth of contrasting examples. Find out how the geopolitics of Eastern Europe is affecting energy security in the EU. In China, energy needs are being met through an overwhelming reliance on coal, but at what environmental cost? And with new technology opening up previously untapped reserves, we ask, what are the potential risks and rewards?

DVD / 2014 / 34 minutes

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GREENING OF ENERGY, THE

Although renewable energies are seen as "clean and green", their development can often be cause for conflict. Some forms of renewable energy are also limited by weather and climate. Examine the pros and cons of a variety of renewable energy sources with this title that draws examples from the UK, India and Europe. The de-carbonisation of energy is discussed, and Tidal, HEP, Wind, Solar, Biomass and Biogas are all considered.

DVD / 2014 / 46 minutes

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BREAKING THE WALL OF PERSONALIZED ENERGY: HOW ARTIFICIAL LEAVES CAN SOLVE THE GLOBAL ENERGY CRISIS

In 2011, Daniel Nocera conquered global media attention when he presented a cheap coated-silicon sheet which, when placed in a glass of tap water and exposed to sunlight, is able to split water into hydrogen and oxygen. Both gases can be collected, stored as fuel in private households and later be fed to fuel cells to generate electricity. While the dream of artificial photosynthesis has been chased by generations of scientists, it was Nocera who included a bottom-up approach in his research, which aims at providing energy for the world's poorest people. "If there is one thing that's unique to the technology development I've done, it has been doing science with the super-poor in mind." Under the impact of the Arab oil embargo and other oil crises of the 70s and 80s, Nocera envisioned his scientific career as humanitarian activity focused on the discovery of the "guarded secret of plants", a concept which was introduced to the scientific debate in 1912 by Italian chemist Ciamician. In order to prepare the artificial leaf for global application, Nocera already managed to reduce production costs significantly by substituting the rare and expensive platinum used in earlier models with inexpensive and earth-abundant materials. As a next step, nanotechnology might help make the leaf more efficient and reduce production costs. At Falling Walls, Daniel Nocera speaks about the walls to break on the way to a global energy revolution.

DVD (Closed Captioned) / 2013 / 15 minutes

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FRACKING: THE NEW ENERGY RUSH

The answer to the energy crisis?

In Fracking: The New Energy Rush (Horizon) geologist Iain Stewart investigates a new and controversial energy rush for the natural shale gas found deep underground. This new supply has slashed the price of electricity, kick started a renaissance in manufacturing and driven down carbon emissions.

Getting it out of the ground involves hydraulic fracturing - or fracking. In Fracking: The New Energy Rush (Horizon) Iain travels to America to find to find out what it is, why it is a potential game changer and what we can learn from the US experience. He meets some of the people who have become rich from fracking as well as the communities worried about the risks.

Note: This BBC production not available in Hong Kong, Macau, Taiwan, Mainland China, Japan, USA, Canada.


DVD / 2013 / 50 minutes

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SAVING SUNSHINE: KEEPING THE LIGHTS ON WITH BATTERIES AND SOLAR POWER

By Winnie Hoskyns-Abrahall, Bill Hennessy

In plain language, master electrician and solar installer Bruce Hankins explains AC coupling, the combining of a grid-tied solar electric installation with an off-grid battery backup system.

As the world turns to sustainability, solar enriches our lives. SAVING SUNSHINE takes a look at today's developments in solar electricity and its increasing role as power provider.

Combining the best features of off-grid, stand-alone solar installations with grid-tied systems that provide distributed generation, photovoltaic systems have evolved into AC-coupled systems. They provide back-up, stand-alone electricity while also using renewable solar energy for our everyday electrical needs.

This combination of renewable energy and energy storage connects multiple inverters with maintenance-free batteries and opens the door to energy independence in a sustainable, low-carbon future.

Teachers, electricians, system installers, architects, owners of grid-tied systems and solar advocates will find the clear explanations in SAVING SUNSHINE helpful in learning the specifics of an AC-coupled system and how it forms a local distribution system to deliver electricity in a more reliable and environmentally friendly manner.


DVD / 2013 / (Grades 10-12, College, Adult) / 34 minutes

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FREEDOM

In the aftermath of the 2010 Deepwater Horizon oil spill, Louisiana native Josh Tickell and his wife Rebecca Tickell take an international journey to investigate alternatives to fossil fuels.

There is widespread agreement that America needs to wean itself off oil yet, among alternative energy sources, the most common and accessible biofuel - ethanol - is a lightning rod of controversy. An anti-ethanol coalition made up of both big oil and hard-line environmentalists stokes the fire of that controversy. In Freedom the Tickells set out to learn the truth about this home-grown fuel and explore how it fits into a solution to America's oil fix.

Freedom offers an array of green solutions. We learn about advanced biofuels, plug-in hybrids, and other sustainable technologies that could fulfill our transportation needs. With insightful and inspiration interviews from former NATO Commander Wesley Clark; former Speaker of the House Newt Gingrich; singer/songwriter Jason Mraz; international author Deepak Chopra; and actors Michelle Rodriguez, Amy Smart, and Ed Begley, Jr., Freedom invites people to become activists.


DVD / 2012 / 92 minutes

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DIRTY BUSINESS: CLEAN COAL AND THE BATTLE FOR OUR ENERGY FUTURE

Directed by Peter Bull

Reveals the true social and environmental costs of coal power and looks at promising developments in renewable energy technology.

In the digital age, half of our electricity still comes from coal. DIRTY BUSINESS reveals the true social and environmental costs of coal power and tells the stories of innovators who are pointing the way to a renewable energy future.

Guided by Rolling Stone reporter Jeff Goodell, the film examines what it means to remain dependent on a 19th century technology that is the largest single source of greenhouse gases.

Can coal really be made clean? Can renewables be produced on a scale large enough to replace coal? The film seeks answers in a series of stories shot in China, Saskatchewan, Kansas, West Virginia, Nevada and New York.

The film features amongst others: Robert Kennedy Jr., Bill McKibben, Dr. James Hansen, Myron Ebell, Don Blankenship, Joe Lovett, Maria Gunnoe, Dr. Vaclav Smil and Dr. Julio Friedmann.


DVD / 2011 / (Grades 8-12, College, Adult) / 90 minutes

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ENERGY QUESTION, THE: NUCLEAR, WIND OR FOSSIL?

In March 2011 a tsunami hit a Japanese nuclear reactor and ignited a new debate on the safety of nuclear energy. This film explores the very different energy policies of two countries: Australia and Sweden.

AUSTRALIA: For decades people in Australia campaigned against the nuclear and uranium industries - but global warming has now led some environmentalists to change their minds. Coal and gas generates 90 per cent of the country's electricity, and the fossil fuel lobby virtually dictates Australia's energy policy. They've come up with a technological fix that promises emission-free power from coal - but the technology is in its infancy, and the eventual costs are unknown.

SWEDEN: For the past 20 years Sweden has generated half its electricity from nuclear reactors. Many people feel nuclear is safe - despite the Chernobyl disaster of 1986. One of the greatest fears associated with nuclear energy is how to dispose of the dangerous waste - and Sweden has an elaborate plan for this, but many other countries, including Australia, are having problems agreeing where to put it.

ALTERNATIVES: Are renewable forms of energy, such as wind, a feasible alternative source of energy? Denmark, the wind power capital of the world, gets an astonishing 20 per cent of its electricity from wind power. Says one commentator: "There are other necessary and urgent things that we should do to stop polluting the planet, and building nuclear power plants is not the answer."


DVD / 2011 / 24 minutes

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POST-CARBON FUTURES

Directed by Yves Billy

Could the bluish-green liquid sloshing around in a laboratory beaker save the world from climate change? The liquid is an algae-based bio-fuel, and scientist Steve Mayfield believes it is a sign that a post-carbon future is drawing closer.

If we're going to avoid catastrophic climate change, we will need to move away from fossil fuels as quickly as possible. But which alternatives are the most promising?

POST-CARBON FUTURES, examines the options&mdashfrom massive wind and solar projects, to re-engineering the planet itself, to more modest local efforts.

From his office in sunny California, John Woolard of BrightSource Energy sees the future in solar power. The company runs the largest solar plant in the US. Located in Nevada, it produces enough energy to power 15,000 homes. Woolard says we don't have an energy problem, we have a collection and distribution problem. But with 2,000 new cars hitting the road in Beijing every day, and China set to open a new coal-fired plant a week for the next decade, the truth is we will require far more energy than solar and wind energy can produce&mdashunless we want to cover the surface of the earth with collector panels and windfarms.

Some believe the solution lies in enormous, continent-altering projects&mdashsuch as a plan to blanket the Sahara in solar panels to produce electricity for Europe. Meanwhile, the developers of the proposed green city of Cao Fei Dian, 150 miles from Beijing, see the future in a city built from scratch on in-filled coastal land.

POST-CARBON FUTURES makes the case that we need a completely different approach to economic growth and prosperity&mdashthat geo-engineering and building huge projects simply in order to maintain a consumer society makes no sense.

British environmentalist Tim Jackson, from the University of Surrey, and French writer Paul Aries both argue that our current economic system has trapped us into needing to constantly increase our emissions. Aries, a leading advocate of the "de-growth" movement passionately argues for a re-imagining of our economic system&mdashnot just cutting back on emissions but redefining prosperity itself.

The film travels to the UK, where we visit the British "transition town" of Totnes, which is converting itself into an environmentally sustainable community, and meet permaculture activists in San Francisco who dream of turning the city's 1,800 acres of lawns into sources of food, fuel and fibre.

The Copenhagen and Cancun climate summits resulted in stalemates. But perhaps the focus on international treaties is misplaced. Maybe our best hope for bold changes lies right in our backyards.


DVD (Color) / 2010 / 53 minutes

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CRUDE INDEPENDENCE

Directed by Noah Hutton

In 2006, the United States Geological Survey estimated that more than 200 billion barrels of crude oil rested in a previously unreachable formation beneath western North Dakota. Oil companies from far and wide began descending on small rural towns across the state with men and machinery in tow.

Crude Independence travels to the town of Stanley (population 1,300) atop the largest oil discovery in the history of North America and captures the change wrought by the unprecedented boom. Townsfolk - store owners, farmers, and county officials - had lived there for decades when the oil men began to arrive searching for clear information on the rightful owners of the land and the riches that flow beneath it.

Through revealing interviews and breathtaking imagery of the northern plains, Crude Independence is a rumination on the future of small town America - a tale of change at the hands of the global energy market. Framed by the July 4th parade down Stanley's Main Street, the film presents a modern American tale of how one resource so far below ground can dramatically affect life on the surface.


DVD / 2009 / 70 minutes

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DREAMLAND

How much unspoiled nature should we preserve and what do we sacrifice for clean, renewable energy?

The stunningly filmed Dreamland gradually turns a land of abundance into a disturbing picture of corporate power taking over small communities... and the country of Iceland itself.

Dreamland is a film about a nation standing at cross-roads.

Leading up to the country's greatest economic crisis, the government started the largest mega project in the history of Iceland... to build the biggest dam in Europe to provide mega-corp Alcoa access to cheap electricity for an aluminum smelter in the rugged east fjords of Iceland. Today Iceland is left holding a huge dept and an uncertain future.

In Dreamland, a nation with an abundance of choices gradually becomes caught up in a plan to turn its wilderness and beautiful nature into a massive system of hydro-electric and geothermal power plants with dams and reservoirs. Clean energy brings in polluting industry and international corporations.

Dreamland is the story of the dark side of green energy.


DVD (Icelandic and English with English Subtitles) / 2009 / 89 minutes

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ENERGY SECURITY: INDIA'S SUSTAINABLE SOLUTIONS

India faces a major energy crisis because of its rapid population growth and industrialisation, but traditional energy sources won't be enough to meet all future needs. This geography DVD resource looks at sustainable alternatives. We visit Asia's largest wind farm and look at who is benefitting from this electricity generation. We then visit a bio gas plant and ask whether this renewable energy source will provide a more appropriate technology for meeting the needs of India's rural population.

DVD / 2009 / 28 minutes

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BIOFUEL FROM BRAZIL: ALTERNATIVE ENERGY SOURCE

Brazil claims to have stolen a march on the industrial world. It's developed a cost-effective alternative to petroleum by growing sugar to produce ethanol.

Brazil's sugar crops are a great source of the petrol-substitute ethanol. And now rising oil prices and Brazil's production of ethanol have led to an automotive revolution in the country.

Car manufacturers in Brazil have created the flex car -- a vehicle that can run on either ethanol or petrol, or any combination of the two. Over 1.3 million flex cars are now running in Brazil - more than half total car sales

The foundations for the country's "sweet revolution" were laid during the oil crisis in the 1970s, when Brazil's military-led government bankrolled the development of the ethanol industry.

Ethanol can be produced from many crops but, in Brazil, it is made from the most potent and cost effective crop of them all, sugar cane. Brazil is the world's largest exporter of sugar and the biggest producer of ethanol.

Sugar has been grown in Brazil for centuries, it's the conversion to alcohol that's a relatively new phenomenon.

In north-east Brazil, much of the harvesting continues to be done by hand. Each man works a 10 hour day, 6 days a week, and cuts 8.5 tons of cane.

The Brazilian government sees ethanol as a chance for the country to boost its economy by becoming a major exporter.

Car manufacturers claim that the change to cars running on ethanol can be achieved without great costs. Special software helps the car to adjust for whatever mix of petrol or ethanol it's using.

But it's not just on the roads that ethanol is powering Brazil. The world's first ethanol-fuelled planes are now being built.

In Brazil, the price of fuel has helped convert millions to ethanol. But they're also claiming environmental advantages because ethanol exhaust gasses are cleaner.

But not everyone is convinced that ethanol is Brazil's environmental saviour. Burning off sugar cane before the harvest is widely considered to be bad environmental practice.

And although ethanol may be a renewable fuel, growing more sugar puts pressure on home soil. The sugar industry has a bad track record when it comes to looking after the environment, and forests throughout Brazil are being destroyed by the sugar farmers.


DVD / 2007 / 41 minutes

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ENERGY AND SOCIETY

Relying on evidence from the past as well as the present, this program explains how energy availability relates to economic growth and human progress. Updated in 2007 it provides ideal introduction to energy issues of 21st century in secondary and college classrooms. This new DVD version includes guided questions and quizzes to help the teacher reinforce concepts recommended in the National Science Education Standards.

Part 1. A Brief History of Energy and Society. Traces the part played by energy throughout human history-muscle power to wind and water to fossil fuels to nuclear and solar energy and to large increases in efficiency today.

Part 2. Energy for Today and Tomorrow. Explains basic concepts in energy science and offers insights into energy production and use for today and tomorrow.

In Energy and Society the keys to scientific literacy include: acid rain, agricultural revolution, carbon dioxide, democracy, efficiency, energy, fission, foot-pounds, fossil fuels, fusion, global warming, greenhouse effect, horsepower, Industrial Revolution, kilowatt, laws of thermodynamics, nuclear energy, photosynthesis, power, renewable energy, solar energy, solar voltaic cells, Watt, watt.


DVD (Closed Captioned) / 2007 / (Secondary, College) / 38 minutes

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ENERGY REVOLUTION, AN? RENEWABLE ENERGY IN GERMANY

Germany is leading the world in encouraging renewable energy. By 2050, half of its energy could come from renewable sources. But what's the real cost of its energy revolution?

Germany's landmark EEG law compels power companies to buy electricity at above market prices, from anyone using renewable technology to generate it. "It's the beginning of an energy revolution," says politician Herman Scheer.

The renewable revolution has already come to the German village of Juhnde where residents now produce their own electricity from manure.

"I'm personally very happy," says one resident, "because now I am independent of the international oil prices." 30 neighbouring villages are so impressed they're planning to invest in their own plants.

Germany is now the world leader in renewable energy. 10% of its electricity requirements are now supplied by wind, solar, bio-mass and small hydro. That will grow to 20-25% within 15 years, when nuclear is scheduled to be phased out.

The EEG law has also led to a boom in solar power. Near the German city of Leipzig is a brand-spanking-new solar panel factory using groundbreaking technology developed in Australia. Germany's support for renewable energy is sucking in technology from around the world.

Germany's renewable energy industry now employs 170,000 people - a new industry. But not everyone is a fan. Power companies, forced to buy renewable energy at a high price, pass the cost onto consumers and business.

This means electricity for domestic use is the most expensive in Europe - for business it's the second most expensive. The critics say that makes some parts of German industry uncompetitive - and actually costs the country jobs.

For Germany's big four energy companies, renewables represent a big threat. With conventional power stations, they make money both from power generation and from distribution. But with renewables they are largely restricted to distribution alone.

Dieter Schaarshmidt is a renewable energy pioneer. He manages a windmill co-operative and is aiming towards 100% renewable energy in the region. "We think that renewable energy should be owned by the people in the region," says Dieter. But the bigger companies are already starting to take over.

The big power companies argue that renewables can't guarantee supply. And because electricity itself cannot be stored on a large scale, they say for the foreseeable future, renewables can only fill a minor, top-up role. And they're getting support from some German politicians who want to keep open the option to use nuclear power.

But Hermann Scheer says renewables alone can meet Germany's entire energy needs, because hydro and bio-mass can guarantee supply when wind or solar are not available. He says the power companies oppose renewables for financial, not technical reasons.

"The most important question is how long do we need?" says Scheer, "Because if this development is postponed and postponed again and again, then we will lose the race against time."


DVD / 2007 / 30 minutes

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ENERGY WAR

By Shuchen Tan, Ijsbrand van Veelen & Rudi Boon

In a world in which the U.S. and Europe are addicted to oil and gas, and those increasingly scarce resources are controlled by authoritarian regimes in Saudi Arabia, Iran, Venezuela, Nigeria and Russia, the geopolitical ramifications have upset the traditional balance of power between nations. ENERGY WAR reveals precisely how the economic importance of fossil fuels affects international politics and becomes a powerful tool of foreign policy.

The film profiles newly emergent "superpowers" such as Iran, a rogue regime that Western democracies must politically tolerate to assure access to its oil, and Venezuela, where President Hugo Chavez has nationalized the oil industry, which boasts the largest untapped oil field in the world. Through interviews with Russian and Georgian government officials, ENERGY WAR shows how oil was used as a political weapon in the struggle between an economically revitalized Russia and its former Soviet Republic.

Thomas Friedman (author of The Lexus and the Olive Tree: Understanding Globalization and The World is Flat) analyzes the political concept of "petro authoritarianism" and Kenneth Deffeyes (Hubbert's Peak: The Impending World Oil Shortage and Beyond Oil) explains the "Peak Oil" phenomenon, the point at which the earth's supply of oil begins its terminal decline.

ENERGY WAR concludes by investigating the search for alternatives to our dependency on oil, featuring interviews with economists, stock market traders, and new energy entrepreneurs who discuss the pros and cons of such possible substitutes as biofuels, hydropower, nuclear and solar energy. As China, Africa, Latin America and even Saudi Arabia are preparing for a "green" future, it's clear that a world of new energy sources will reshape the global balance of political power.


DVD (Color) / 2007 / 78 minutes

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ENERGY AND RESOURCES

As the Earth's fossil fuel reserves decline, what forms of energy will come next? After discussing the formation, uses, and consequences of burning coal, oil, and natural gas, this DVD explores the development of alternative resources that may someday completely replace them: nuclear power, solar energy, biomass, geothermal energy, hydroelectric power, and wind power. Benefits, costs, and environmental impacts are considered.

DVD / 2006 / (Grades 7-12) / 21 minutes

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ENERGY ON EARTH

As the third millennium begins, earth relies ever more heavily on fossil fuel energy. This program helps students understand basic laws of energy flow, the importance of energy supplies for industrial civilizations, and the options for the new century. Stresses the importance of research into alternatives, including nuclear power, that do not add to global warming.

DVD / 2006 / (Secondary, College) / 24 minutes

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RENEWABLE ENERGY: WIND, WATER & SOLAR RAYS

The need for nontraditional energy sources has been well publicized. This program consolidates information about the many promising and exciting alternative solutions to the energy problem. Students learn how energy from the sun can supply power for heat, electricity and transportation by means of solar cells, solar towers and active or passive solar heating system. Other sources of renewable energy are discussed-biomass, wind, falling water and tides. Each is evaluated in terms of efficiency in receiving, storing and providing energy.

DVD / 48 minutes

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