Is Desalination Right for OC?

As you may know, Southern California will eventually face a water crisis. Excessive use of water by agriculture, industry, and residential communities deplete our groundwater faster than it can recharge. Furthermore, issues with water imported from the Sacramento delta and the Colorado River combine to exacerbate the situation; and the current dry winters only add to the existing problem.

Is desalination a viable alternative for supplying water for our thirsty economy and lifestyle?

A publicly funded, private desalination plant has been proposed for Huntington Beach by Poseidon Resources.  If allowed, this would be the largest facility of its type in North America. Is this plan technologically, fiscally, and environmentally responsible?  What are the costs?  How will energy be provided to operate the facility?  What happens to marine life in the short- and long term?