Continuously dissipating 1 gigawatt of energy by boiling room temperature water would require approximately 1.38 million liters of water per hour.
Seems like the environmentally responsible thing to do be to build the datacenter near the coast and use the waste heat to desalinate water. Or at least dissipate the heat into the ocean rather than boiling off an inland freshwater supply.
run it through a turbine and generate electricity to power the datacenter - infinite energy and infinite ai unlocked.
This idea is probably more worth it in middle eastern countries given that 90% of their water comes from Desalination Plants. But given the recent war within region, I don't really expect Datacenters to be built within the region for quite a long time.
And kill the local aquatic life as you raise the temp beyond their happy place?