That's called "tiny thinking". No imagination.
Our country has oceans of water on both sides. Scientists have looked at everything from desalination to moving icebergs.
Desalination: Drink a cup of seawater? - US Geological Survey
Recently, considerable attention has been given to the use of renewable energy as sources for desalination, especially in remote areas and islands, because of the high costs of fossil fuels, difficulties in obtaining it, attempts to conserve fossil fuels, interest in reducing air pollution, and the lack of electrical power in remote areas.
Simulation shows it
http://www.rand.org/content/dam/rand/pubs/reports/2008/R1255.pdf
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Take wind energy or solar energy. Instead of using them for "houses", imagine using them for removing salt from ocean water on a large scale.
There is a lot science and technology can do. Things that are already being used. They will require infrastructure investment and investment in science, education and technology and will require government working with business and universities.
But this will never happen with Republicans who think government should be shrunk so small you can drown it in a bathtub and education is for snobs and science is a "faith".
Look at Rick Perry, praying for rain in a stadium hoping with more voices, God will "take notice". Give me a break. That's how Republicans approach problems.
Office of the Governor Rick Perry - [Proclamation] Gov. Perry Issues Proclamation for Days of Prayer for Rain in Texas