With enough data centres like these, all the excess heat will go straight into the sea, further contributing to climate change. The only place these data centres wouldn’t contribute further to climate change is if they were buried deep down in earth’s crust but then cooling would be an issue.
I think I prefer the idea of city center data centres where the excess heat is put to use for central heating systems
Thermodynamics fail.
Global warming is not caused by humans creating heat. There is nothing humans could do that would produce even the tiniest fraction of the thermal energy that reaches the Earth from the sun.
Global warming is caused by GHG which increase the percentage of the thermal energy from the sun which is trapped. The sun is so off the charts powerful compared to any heat sources produced by humans that even the tiniest increase in the greenhouse effect can raise global temperatures.