14:41
Air: Fuel Cell Technology: The Clean Air Solution?
In the area of zero emissions technology, fuel cells are very promising. When using hydrogen in a fuel cell, the only byproduct is water vapor. The technology can be used in automobiles, buses, and power plants. The main obstacle to its widespread u...
11:10
Air: China's Impact on Global Air Quality
China is in a period of rapid economic development. Its size, both in land mass and human population, and the fact that it uses primarily coal to fuel its industrialization, make for a current air pollution problem and the potential for enormous glo...
01:34
Clean Air Act of 1970, The
Scientist and climate change expert Michael Oppenheimer talks about the Clean Air Act of 1970, which he says mandated a slew of controls on automobiles, smokestacks and other sources of air pollution.