Another point of fairness when comparing Sulfur Content to BTU value as quoted from an engineering expert document.
"Another problem with low sulfur coals is that they tend to release less heat energy than higher sulfur coals when they are burned. That means that you have to burn more of it to generate the same amount of power. As a result, utilities ended up having to buy more coal, another cost that was passed on to the consumer."
Nothing is perfect but one thing is for sure Air Pollution standards are extreemely costly to meet and sound economic/engineering considerations must be done when comparing these types of fossil fuels. My experience as an Environmental Engineer tells me that I would rather not face the mouth of the dragon (ie Sulfur removal at the stack) at all costs.
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