President Obama made a historic announcement Wednesday, saying that the federal government is considering investing in the geothermal power in the rock formations under the Salton Sea in Southern California. Considered to be “the most powerful geothermal reservoirs in the world,” the Salton Sea announcement could play a critical role in the future management of the Colorado River. Fifty years ago, Glen Canyon Dam was built above the Grand Canyon, and the Colorado River was enslaved to generate electricity to feed the hunger of the booming southwestern cities and suburbs.