There is one solution: put the AI data centers at locations where cleanly-generated power is plentiful. And that only means two countries, Iceland and Norway, where you can tap into the huge amount of geothermal energy available on Iceland or the huge excess of hydroelectric power from Norway's many dams.
At least that's the solution in the short to medium term. Long term, it's time to starting building cleaner and safer Generation IV nuclear reactors in modular form with each small reactor generating about 100 to 250 MW of power, which should be enough for a fairly large-sized AI server farm. Why Gen IV nuclear power? Because the physical footprint of power plant will be a tiny fraction of a large solar farm or a large installation of wind turbines.