We’ve already managed to cause ocean temperatures to rise by burning fossil fuels. Now we’ve figured out a more direct way to do it: dipping our heat-generating data centers directly in the water. China officially turned on the world’s first underwater data center this week. The project is the work of HiCloud Technology and China Communications Construction and is located about six miles off the coast of Shanghai’s Lin-gang Special Area, a region that has been designated for high-tech projects and manufacturing. The data center, which cost about $226 million to build, sits about 30 feet below the surface of the ocean. It’s also really more of a proof-of-concept project than a meaningful addition to the country’s capacity, as its capacity maxes out at 24 megawatts—significantly smaller than the gigawatt facilities that are being built elsewhere to support the growing demands of artificial intelligence. According to the Chinese government, the data center will reduce power consumption by about one-fifth compared to data centers on land. That’s because it is pulling most of its power from an offshore wind farm and is using the natural cooling effects of being submerged in the ocean to counteract some of the typical cooling needs that data centers have.