...can often be traced to a struggle over resources.
This report (via CM) claims that many water conflicts will happen in the Western US, due to increasing demand and falling supply. They use this graphic to illustrate the point.
Unfortunately, the report does not examine some obvious tools for alleviating conflict.
The only mentions of "price" or "market" in the report are related to insurance markets (for climate change risk). Unfortunately, the report is silent on the use of markets for water, or energy, or carbon. That's a pity, since the report reflects the collected wisdom [sic] of the Federal government, and prices and markets are notoriously useful in reducing the cost and conflict over resource allocation.
Bottom Line: Use the right tools to solve problems; the wrong tools don't fix anything and leave you frustrated.