@amsden2000 - We might not have room to switch exclusively to white coal, but maybe we could combine it with solar and water energy sources to add up to everything else. You are very right about businesses -- if they can't make even more money than they do, they aren't going to change.
White coal is a greener alternative to black coal, but it's still not 100% clean -- no power source is. Doing less damage is of course better, but solar and water energy sources are even cleaner than white coal. We should try to focus on them first, than white coal.