Browse Titles - 117 results

Habitable Planet, Unit 6, Risk, Exposure, and Health
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produced by Clive A. Grainger, fl. 1999, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 6 (District of Columbia: Annenberg Learner, 2007), 28 mins

We are exposed to numerous chemicals every day from environmental sources such as air and water pollution, pesticides, cleaning products, and food additives. Some of these chemicals are threats to human health, but tracing exposures and determining what levels of risk they pose is a painstaking process. How do har...

produced by Clive A. Grainger, fl. 1999, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 6 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 7, Agriculture
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produced by Alex Griswold, fl. 1982 and Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 7 (District of Columbia: Annenberg Learner, 2007), 28 mins

Demographers project that Earth's population will peak during the 21st century at approximately ten billion people. But the amount of new cultivable land that can be brought under production is limited. In many nations, the need to feed a growing population is spurring an intensification of agriculture - finding w...

produced by Alex Griswold, fl. 1982 and Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 7 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 8, Water Resources
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produced by Clive A. Grainger, fl. 1999, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 8 (District of Columbia: Annenberg Learner, 2007), 28 mins

Earth's water resources, including rivers, lakes, oceans, and underground aquifers, are under stress in many regions. Humans need water for drinking, sanitation, agriculture, and industry; and contaminated water can spread illnesses and disease vectors, so clean water is both an environmental and a public health i...

produced by Clive A. Grainger, fl. 1999, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 8 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 9, Biodiversity Decline
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produced by Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 9 (District of Columbia: Annenberg Learner, 2007), 28 mins

Living species on Earth may number anywhere from 5 million to 50 million or more. Although we have yet to identify and describe most of these life forms, we know that many are endangered today by development, pollution, over-harvesting, and other threats. Earth has experienced mass extinctions in the past due to n...

produced by Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 9 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 10, Energy Challenges
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produced by Alex Griswold, fl. 1982 and Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 10 (District of Columbia: Annenberg Learner, 2007), 28 mins

Industrialized nations rely on vast quantities of readily available energy to power their economies and produce goods and services. As populations increase in developing countries and citizens demand better standards of living, global energy consumption will continue to rise, along with demands for non-fuel minera...

produced by Alex Griswold, fl. 1982 and Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 10 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 11, Atmospheric Pollution
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produced by Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 11 (District of Columbia: Annenberg Learner, 2007), 28 mins

Many forms of atmospheric pollution affect human health and the environment at levels from local to global. These contaminants are emitted from diverse sources, and some of them react together to form new compounds in the air. Industrialized nations have made important progress toward controlling some pollutants i...

produced by Tobias McElheny, fl. 1998, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 11 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 12, Earth's Changing Climate
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produced by Alex Griswold, fl. 1982, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 12 (District of Columbia: Annenberg Learner, 2007), 28 mins

Earth's climate is a sensitive system that is subject to dramatic shifts over varying time scales. Today human activities are altering the climate system by increasing concentrations of heat-trapping greenhouse gases in the atmosphere, which raises global temperatures. In this unit, examine the science behind glob...

produced by Alex Griswold, fl. 1982, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 12 (District of Columbia: Annenberg Learner, 2007), 28 mins
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Habitable Planet, Unit 13, Looking Forward: Our Global Experiment 
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produced by Alex Griswold, fl. 1982, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 13 (District of Columbia: Annenberg Learner, 2007), 28 mins

Emerging technologies offer potential solutions to environmental problems. Over the long-term, human ingenuity may ensure the survival not only of our own species but of the complex ecosystems that enhance the quality of human life. In this unit, examine the wide range of efforts now underway to mitigate the worst...

produced by Alex Griswold, fl. 1982, Harvard-Smithsonian Center for Astrophysics, in Habitable Planet, Unit 13 (District of Columbia: Annenberg Learner, 2007), 28 mins
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History Behind the Headlines, The [Green] New Deal
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produced by Media Rich Learning, in History Behind the Headlines (Chesterton, IN: Media Rich Learning, 2019), 3 mins
Long before the Green New Deal, President Franklin Roosevelt introduced a bold plan to combat the Great Depression. He called it the New Deal. The mosaic of plans, programs, and reforms put Americans back to work and restored confidence in the US economy. It didn't break the depression altogether, but it changed t...
produced by Media Rich Learning, in History Behind the Headlines (Chesterton, IN: Media Rich Learning, 2019), 3 mins
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History of Life, Episode 1, Plants, Earth’s Quiet Rulers
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directed by Kim Si-joon, fl. 2010; produced by Lee Yeon-Kyu, fl. 2013, Film Ideas, in History of Life, Episode 1 (Wheeling, IL: Film Ideas, 2013), 46 mins
Plants, the oldest form of life on earth hold many mysteries. While plants are often thought of as passive, we will see how many species have adopted aggressive strategies that have allowed for their survival. It is these "quiet rulers" of earth that are not only the foundation of the global ecology, but also the...
directed by Kim Si-joon, fl. 2010; produced by Lee Yeon-Kyu, fl. 2013, Film Ideas, in History of Life, Episode 1 (Wheeling, IL: Film Ideas, 2013), 46 mins
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