"By comparison, data centres consumed 415 TWh in 2024, roughly 1.5% of the world’s total electricity consumption (see ‘Global electricity growth’)."
Electricity accounts for about 1/3 of global GHGs, so data centres are <1% of global GHGs.
"They found that servers for AI accounted for 24% of server electricity demand and 15% of total data centre energy demand in 2024."