# How cleanly can they burn coal?

**URL:** <https://boards.straightdope.com/t/how-cleanly-can-they-burn-coal/429844>\
**Category:** Factual Questions\
**Created:** [December 13, 2007, 1:16pm UTC](https://boards.straightdope.com/t/how-cleanly-can-they-burn-coal/429844 "2007-12-13T13:16:10Z")\
**Posts on this page:** 1\
**Page:** 3

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**Author:** ![Shodan](https://avatars.discourse-cdn.com/v4/letter/s/9f8e36/32.png) [@Shodan](https://boards.straightdope.com/u/Shodan)\
**Post date:** [December 17, 2007, 11:34pm UTC](https://boards.straightdope.com/t/how-cleanly-can-they-burn-coal/429844/41 "2007-12-17T23:34:30Z")

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Your willingness to share your expertise is appreciated, **Una**.

Regards,  
Shodan

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