"purifying and production processes, but some of it is nas-ty!
Ever worked in a mine. ive worked in plenty including coal.
Forget about the Nox, diesel, lube cleaning solvents and hydraulic fluids
you should see the chemicals they use in separation/washeries/bene plants. there is a reason their are laws governing their use and spillage.
Like I said, I like mining and solar but you seem to have a real concern with manufacturing. If you had your way we would be living in caves rubbing sticks together
