The percentage of datacenters around the globe is very small (like 1%). In contrast this saves us a tremendes amount of co2 due to optimization of logistics, doing your bank business at home, calling someone instead of meeting them etc.
Datacenters are in my opinion the biggest net positives for co2, are easy to make green, have the most money behind them (which means faster and better investments) and are ooperated by our leading tech companies, who will use this to push further the industry of green energy.
Those datacenters and especially AI energy investments are also the biggest research advantage we have. Optimizing solar energy gains and storage capacity. We need them for simulating/generating new materials, production processies, etc.
We need to do a LOT in regards of heating. Heating is critical.