Detailed text transcripts for TV channel - CNN - 20100408:18:03:00
Sulphur dioxide, by the way, is the problem in coal and carbon dioxide. the next coal-cleaning method i want to talk to you about is called gasification. it basically converts the coal into a gas by blasting it with steam and oxygen, so coal is a solid. and you're making it into a gas. with coal in gas form, it's actually easier to filter out the by-products that are bad for the environment. and then this is the most -- this is one that a lot of people talk about. the president even talks about this one. carbon capture and seque sequestration, it's capturing something and holding it. let me pu...
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