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From Delaware to North Carolina, a formerly unknown species of toxic algae has been implicated in an alarming series of fish kills and associated human illnesses. This program scrutinizes the dinoflagellate known as Pfiesteria piscicida. Discovered by researchers at North Carolina State University, P. piscicida is now known to have a highly complex life-cycle with dozens of reported forms, a few of which can produce potent toxins. What has triggered this organism—a common indigenous inhabitant of mid-Atlantic coastal waters—to suddenly become a sensational health hazard and the focus of widespread panic? (28 minutes)



 
                

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The Environment: A Historical Perspective
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From the first agricultural settlements, to the industrial revolution, to agribusiness and widespread urbanization, humans have been transforming the environment for thousands of years. But now, with rain forests disappearing at an appalling rate, po...(more details)
 
The Last Drop: Is the World Running Out of Water?
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Water shortages contribute to many regional conflicts worldwide. Only two-and-a-half percent is fresh, and it is therefore a precious commodity. This documentary illustrates how the worsening problem of global water shortage leads to regional politic...(more details)
 
Organic Cleanup: Microbes and Pollution
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Over 200 years of industrial activity have left the earth with a legacy of pollution and waste. This program looks at how pollution from everyday industrial production and from ecological disasters like the Exxon Valdez oil spill can be cleaned up wi...(more details)
 
Alternative Power Sources and Renewable Energy
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This program demonstrates how wind turbines, solar cells, hybrid automobiles, and coal gasification plants are beginning to transform the way the world is powered. The U.S. Secretary of Energy, the director of the National Wind Technology Center, the...(more details)
 
Save Our Swamp! The Everglades in Crisis
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This program examines the harm done to the Everglades by decades of exploitation and contamination. The impact of the sugar and orange industries, of flood control efforts, of Florida's burgeoning population, and even of competing conservation initia...(more details)
 


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