It looks like you're new here. If you want to get involved, click one of these buttons!
Dave Summers (Heading Out) has a rebuttal to the recently reinvigorated claim that coal will peak soon after oil: Future Coal Supplies - more, not less!.
I also read, but didn't note the link and can't now find it, that a coal-water-slurry with very small coal particles (5 microns?) can be run in a standard diesel engine.
So the temptation to keep burning coal is going to be hard to resist in tough economic times. We need something better.