"The Implications of Ending Groundwater Overdraft for Global Food Security" https://news.ycombinator.com/item?id=40686383
Computers made out of superconductors and Graphene instead of Copper would waste much less heat and water. "Ask HN: Can CPUs etc. be made from just graphene and/or other carbon forms?" https://news.ycombinator.com/item?id=40719725
Passive thermal design of data centers could reduce waste, too. Would heat vent out of server racks better if the servers were mounted vertically instead of like pizza boxes trapping heat?
> - "Desalination system could produce freshwater that is cheaper than tap water" (2023) : "Extreme salt-resisting multistage solar distilation with thermohaline convection" (2023) https://news.ycombinator.com/item?id=39999225
Most datacenters are not yet able to return their steamed and boiled water back to the water supply for treatment. Datacenters that process and steam sanitize water would rely upon the water utility company to then also remove PFAs.
Does OTEC work in datacenters; would that work eat some of the heat? https://news.ycombinator.com/item?id=38222695