Humana Inc. is a US health insurer headquartered in Louisville, Kentucky, operating Medicare, Medicaid and other health plans, pharmacy benefits and CenterWell senior primary care clinics.
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Humana's Scope 1 and 2 emissions, reported with third-party assurance, fell from 104,118 tCO2e in 2022 to 95,418 in 2024 and rose slightly to 96,532 in 2025. It attributes a 64% fall in Scope 3 in 2025 to methodology changes, not physical cuts. Renewable certificates cover about 9% of its electricity. It reports financed emissions of 2.87 Mt for 2025 but does not say how they were calculated, and its CEO sits on the Business Roundtable.
Humana scores 36/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified October 2026.
That places Humana joint 462nd of 855 companies scored, and 9th of 16 in Insurance.
Where Humana sits among insurance peers.
Among the 16 major insurance brands we've scored, Humana sits 9th of 16.
Its three lowest-scoring questions, and what the evidence didn't show.
No Power Purchase Agreements, RE100 membership, or renewable target found.
No biodiversity, deforestation, or TNFD disclosure in policy, 2025 Impact Report, or appendix.
No water reduction target or measures found.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Carbon Footprint — Operations and Targets & Commitments (7/10, 7/10). Weakest on Energy Source and Nature & Biodiversity Impact (3/10, 3/10).
The 3 companies in the sector scoring nearest above Humana.
Cigna reports operational emissions largely covered by renewable certificates rather than power purchase agreements.
See the breakdown →Allianz reports comprehensively under CSRD with PwC assurance, but the company's operational emissions are rising while it claims progress via portfolio accounting changes.
See the breakdown →Admiral discloses mandatory carbon metrics but hasn't cut absolute emissions—Scope 1&2 rose 10% in 2025.
See the breakdown →The formula and all 9 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale9 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
Humana reports financed emissions of 2.87 Mt for 2025 but doesn't say how they were calculated, so the floor applies.
“Total Scope 1 GHG emissions (CO2, CH4, N2O, HFCs) 28,852 28,166 36,8551 40,641*”
“we established a Supplier Code of Conduct that embeds”
“Review and develop the adoption of renewable energy strategies”
“We provide a full report of our greenhouse gas (GHG) emissions, energy consumption and water usage within our Impact Report”
“which could occur more frequently or with more intense effects as a result of the impact of global climate change”
“Humana Inc.'s portfolio targets cover 30% of its total investment and lending by”
“67.3% of its listed equity and corporate bond portfolio by invested value setting SBTi-validated targets by 2029 from a 2022 base year”
“Specific steps include continued investment in more energy efficient buildings, procuring additional sources of renewable energy and transitioning its fleet.”
“Jim Rechtin started with Humana January 8, 2024”
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Humana Inc. is a US health insurer headquartered in Louisville, Kentucky, operating Medicare, Medicaid and other health plans, pharmacy benefits and CenterWell senior primary care clinics. Incorporated in 1964 (its roots go back to 1961), it had about 67,060 employees and $129.7 billion in FY2025 revenue.
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