: Sustaining the Environment
Achieving environmental sustainability will require a shift away from core cultural values based on production and consumption.
Acid Rain: Sources and Impact
Scientist and climate change expert Michael Oppenheimer discusses the causes and impact of acid rain. Oppenheimer states that the primary sources of acid rain are emissions of sulfur dioxide and nitrogen oxides from elec..
Air Pollution Following World War II
Scientist and climate change expert Michael Oppenheimer talks about the deterioration of air quality in the United States from the 19th century through the post-War years. He focuses on the contribution of the automobile..
Air Pollution Through the 1960's
Scientist and climate change expert Michael Oppenheimer talks about the increase in air pollution in the United States and elsewhere through the 1960's. He notes that this increase was in large part responsible for legis..
Air Pollution in China and Mexico City
Scientist and climate change expert Michael Oppenheimer compares air quality problems and challenges in Mexico City and China. He notes that smog problems in Mexico City are similar to those found in Los Angeles.
Air Pollution on a Global Scale
Scientist and climate change expert Michael Oppenheimer talks about the fact that air pollution circulates globally and that, regardless of its origins, the impact of such pollution can be felt anywhere in the world.
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 t..
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..
Alternative Sources of Energy
Paul Ehrlich, best known for his work on population growth, discusses solar hydrogen technology as an alternative to fossil fuels and nuclear energy.
Biological Treatment Technologies: Biological Treatment, Wastewater and Sewage
Biological treatment is a major application of microbial technology used for treating municipal wastewater and sewage. One of the most important biological treatment processes is anaerobic digestion, in which anaerobic ..