Compared to all of the humans who compete at this level and their inputs and outputs for the trailing 5 years.
The result is (likely) net energy consumption, resulting in (likely) net CO2 emissions.
So, what was did it cost us for this achievement in AI?
EDIT TO ADD: It's fair to think that such a presser should not include answers to my questions. But, it's also fair to want that level of transparency given we are dealing with climate change.