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Carbon Offsets by U.S. State

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Key Takeaways

  • Florida led U.S. carbon offsets in 2025, ahead of California and Ohio by credits issued.
  • Data center electricity use is rising quickly, and emissions could rise as a consequence.
  • Utilities are pairing offsets with reliability planning as AI-driven electricity demand accelerates.

AI-driven data centers are driving up U.S. electricity demand, and utilities are being asked to add capacity faster than usual.

Consequently, carbon offsets are getting renewed attention as a near-term tool while long-lead infrastructure comes online.

This graphic, in partnership with the National Public Utilities Council, maps carbon offset credits issued across U.S. states in 2025 using data from UC Berkeley’s Voluntary Registry Offsets Database.

Carbon Offsets Across the U.S. in 2025

Here is a table showing carbon offset credits issued by state in 2025.

State Credits Issued in tCO₂e (2025)
Florida 7,196,787.95
California 6,643,770.50
Ohio 5,822,505.00
Texas 5,659,970.60
West Virginia 5,229,515.00
Georgia 3,877,432.12
Illinois 2,789,297.50
New Mexico 2,624,583.50
Iowa 2,432,445.00
Arizona 2,216,276.00
Arkansas 1,873,127.50
Virginia 1,682,361.58
Maine 1,478,850.50
Missouri 1,383,340.50
Pennsylvania 1,339,430.08
Oklahoma 1,261,148.50
Kentucky 1,157,366.00
New York 1,132,181.67
Michigan 1,095,907.17
Wisconsin 1,003,886.83
Mississippi 998,105.00
Louisiana 855,889.00
Washington 817,527.00
Oregon 787,698.50
Colorado 782,318.75
Indiana 720,079.73
Alaska 662,895.00
Massachusetts 624,174.83
Tennessee 522,554.37
Montana 473,455.00
Kansas 450,827.00
New Hampshire 423,215.83
Alabama 398,439.62
North Carolina 372,688.00
Wyoming 301,169.00
Minnesota 284,943.42
Connecticut 218,534.00
Vermont 213,278.33
New Jersey 112,381.00
Utah 92,610.00
South Carolina 72,828.45
Delaware 30,803.33
South Dakota 17,418.93
Nebraska 16,721.40
Hawaii 0
Idaho 0
Maryland 0
Nevada 0
North Dakota 0
Rhode Island 0

Offset credits are measured in metric tons of carbon dioxide equivalent (tCO₂e) and can represent verified reductions or removals from many different project types.

​​However, this dataset is limited to voluntary registry credits issued and doesn’t include all offset activity nationwide.

The Leaders for 2025

Florida leads with 7.20 million tCO₂e, followed by California (6.64 million) and Ohio (5.82 million).Texas (5.66 million) and West Virginia (5.23 million) round out the top five, while Hawaii, Idaho, Maryland, North Dakota, Rhode Island, and Nevada report zero.

Even though more projects generally correlate with more offsets, Florida ranked #1 in offsets with 41 projects, compared to 198 for California and 277 for Ohio.

These offset projects can range from forest management to agricultural methane capture to chemical processes such as refrigerant destruction.

For scale, 1 million tCO₂e is about what 16 million urban tree seedlings grown for 10 years can sequester in a year.

Utilities Respond to AI Load Growth

Data center electricity use is rising quickly, and AI is a key driver of that growth.

As AI drives energy demand higher, some utilities have launched customer-facing offset programs, including Illinois’ Nicor Gas with TotalGreen and Michigan-based DTE with CleanVision Natural Gas Balance.

These programs can help customers act now, while utilities continue building the long-term resource mix.

Meanwhile, natural gas is currently positioned as a near-term reliability bridge for data center-driven electricity demand growth.

At the same time, nuclear energy is being discussed as a potential firm, low-carbon solution for meeting future load.