>>Scientific American had a interesting series of articles recently on how precious and scarce fresh water resources will be come both world wide and in the US (particularly the West and Southern tier of states) in the future and the future is not that far off.
>>Truman
With all the arctic ice melts, you'd think that reverse osmosis would be the future ( California has a huge coast line). Not going back in time to damming .
Hydro-electric power can also not be part of the long run future of this country, as with coal, oil etc. There are more natural, less damaging alternatives to power.