If so inclined, you can view the proceedings via a livestream at The Uptake. A good many viewpoints will likely be presented, in at least some cases quite vigorously.
It is never my intent to caricature supporters of sulfide mining in the general public. They have their reasons, and many are knowledgeable, well-intentioned, and no fools.
Some information on a purported “damage deposit:”
A draft permit to mine issued by the Minnesota DNR last month calls for PolyMet to make available $544 million in financial assurance the first year of mining, which acts as a sort of damage deposit if PolyMet couldn’t pay for the proposed mine’s cleanup.
However, state officials estimated that more than $1 billion would be necessary to cover the potential environmental liability Minnesota could be left with from the mine.
The DNR is taking comments through March 6; the PCA through March 16.
Correction (Feb. 8, 2018): A previous version of this story incorrectly stated that PolyMet has put up money for financial assurance. A draft permit calls for that, but PolyMet would not begin to make financial assurance available unless and until it receives permits and begins construction.