Much of the information on our computers and smart phones is saved to “the cloud,” or huge data centers. These centers are usually built in remote areas, and they have one major problem: Running them creates a lot of heat. The servers have to be constantly cooled. Microsoft is testing a way to save money on cooling costs by putting data centers underwater. The underwater centers could be powered by renewable wave power. Microsoft’s test is called Project Natick. The results of their first test are promising. But it has not been determined when the idea might become reality.