Well, coal fired power stations are big polluters. They produce plenty of pollutants, not just pure water. Actually, in a large part it is the high water content of brown coal that makes it such an inefficient and high pollution per kilowatt energy source. And water vapour is also a powerful greenhouse gas; something pro-hydrogen-fuel lobbyists don't seem to have woken up to.
I just watched today's Sky Watch segment by resident suit-n-tie "astronomer" Glen Nagle (almost a Nagler!), who referred to the Beehive M44 as a
globular cluster.