Unlike fictitious CO2 problems, H2O is a genuine problem in many states. It's a giant problem in California.
I have an interest in California because one of my son's and his family live there... and I think it has some interesting fruits and nuts. The problem is that there is a water supply problem affecting humans and agriculture. Oh, there is a lot of water nearby, but just not available.
Recently, California got a total of $40 billion "to finance a safe drinking water and water supply reliability program for California." An article in Environmental News Service discusses this financing. Governor Schwarzenegger said, "This money will fund a variety of different projects which will fix the Delta, it will restore its ecosystem and it will go and build a better conveyance system. And we will have, once and for all, below and above the ground water storage, which we have been fighting for and I wouldn't have signed this without that water storage."
"In addition," said [Secretary of the Interior Ken] Salazar, "the administration is fully committed to funding and moving forward with the construction of the Delta-Mendota Canal/California Aqueduct Intertie, pending the completion of a Record of Decision on the project, which we anticipate within the next 60 days. [EPA]
So water will be moved from one place to another and that may solve the problem... or not. Just another thought. Certainly, fresh water could be supplied to all cities near the Pacific coast through desalination plants that cost about $100 million apiece. California could build 200 of those for half of the $40 billion and divert a lot of natural fresh water to the central farming regions using the remaining $20 billion toward that. Coastal cities don't need mountain water; farming valleys do.
Or the money can be spent on pumping CO2 into ground storage instead.