Sierra Club: US power emissions to rise 42% by 2030 on data center boom

Sierra Club analysis projects US power-sector emissions will reach 2.1 billion metric tons by 2030, up 42% from 2025 and wiping out 15 years of cuts. Off-grid data centers alone would match Mexico's emissions.

• US power emissions seen at 2.1B metric tons by 2030
• 42% rise from 2025 would erase 15 years of cuts
• Off-grid data centers emit as much as Mexico