Things to worry about
Why a local economic story? A lot of this stuff is not leaving here by plane:
If you dig into that export data lots of things pop out. The value of international exports in "Mining (except oil and gas)" went up over 60% between 2010 and 2011. That is data for the MSA, which means it does not even capture the prodigious coal being mined in nearby counties like Greene. Might be worth noting that more recent national data shows more coal exports for 2012 thus far at least when measured in tons, if not value.