Bloodstone
Warlord
Yes it is useless to build the Hydro or Nuke as it won't help boost production. You'll be better off working on the tech path that will get you to Recycling Centers to eliminate the Unhealthiness from Coal.
If you stay within this actual Thread and Search using the keywords, Coal, Hydro, Nuclear Plants, you will pull up some very good info on the subject in the other 850 some pages. Don't use the "forum search" button at the top of the page, your looking for the button that says: "search this thread", it has Thread tools to the left of it, and Rating to the right, just below the page numbers listing. I spent a lot of time before finding this valuable resource
If you stay within this actual Thread and Search using the keywords, Coal, Hydro, Nuclear Plants, you will pull up some very good info on the subject in the other 850 some pages. Don't use the "forum search" button at the top of the page, your looking for the button that says: "search this thread", it has Thread tools to the left of it, and Rating to the right, just below the page numbers listing. I spent a lot of time before finding this valuable resource