Nvidia is promoting a new data center reference design it says runs hotter and uses almost no water.
The company's Rubin-generation reference design calls for fully liquid-cooled data centers, which Nvidia claims have "eliminated massive amounts of power usage and pretty much all water usage." The pitch is aimed squarely at public criticism of AI infrastructure's environmental footprint. Liquid cooling allows servers to run at higher temperatures than traditional air-cooled setups, which in theory reduces the need to pump chilled water through cooling towers. Nvidia is positioning this as proof that the industry can scale AI compute without draining local water supplies.
Water consumption is one of the sharpest edges of the data center backlash — communities near large facilities have raised alarms about aquifer drawdowns and utility strain. A design that credibly addresses that concern would matter to regulators, municipal governments, and the cloud providers trying to get permits approved. If Nvidia's numbers hold, this gives hyperscalers a real talking point in those fights.
But the announcement skips a few inconvenient questions. Nvidia's blog post says nothing about what it costs to build a fully liquid-cooled facility compared to a conventional air-cooled one — a gap that Gizmodo flagged. It also doesn't touch the emissions tied to construction itself or the sheer electricity demand these facilities require, which remains enormous regardless of how the heat gets managed. "Eliminated water usage" is a cleaner headline than "shifted the problem slightly downstream."