QUESTION
Summarize the points made in the lecture, being sure to explain how they cast doubt on specific solutions presented in the reading passage
READING PASSAGE
The coal industry has had a large environmental impact from land use, waste management, water and air pollution caused by coal mining, processing, and using coal. Not only does it cause atmospheric pollution, but coal burning also produces millions of tons of solid waste products. Burning coal comes with severe health effects and is estimated to shorten approximately 1,000,000 lives worldwide every year. The following are three methods for reducing the pollution produced by coal burning.
One method is to improve the reaction efficiency. By improving the reaction efficiency, air pollution can be reduced. It will not be an immediate impact, but over the long term it will have a significant impact.
Another method is to use water to flush the coal and remove sulfides to prevent the creation of sulfur dioxide. This would help to reduce the level of pollution created by the sulfides reacting with the air.
A third method is to collect the emitted carbon dioxide. This would prevent the gases from reaching the atmosphere. Pollution levels from carbon dioxide would drop significantly over time as this technology is expanded.
LECTURE AUDIO