North Star Mutual Ins. Co. v. Lyle Rodin

Circuit 8Apr 7, 2026

Split Score

SplitScore: 50/100

Case Summary

Disposition

Affirmed

The Eighth Circuit affirmed the district court’s grant of summary judgment to North Star Mutual Insurance Company, holding that the policy’s pollution exclusion unambiguously bars coverage for injuries allegedly caused by carbon-monoxide emitted from a portable heater on the Rodins’ farm. The court declined to certify the interpretive question to the North Dakota Supreme Court, predicting that under North Dakota law the exclusion would be read as an "absolute" bar rather than a narrow, environment-only limitation.

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Circuit Split Identified

Legal Issue

Whether standard-form pollution exclusion clauses in commercial general-liability policies operate as narrow, environment-related exclusions or as broad, 'absolute' exclusions that bar coverage for non-environmental bodily-injury claims caused by substances such as carbon monoxide.

Circuit Positions

Circuit 2Circuit 10

Pollution exclusion is ambiguous and applies only to traditional environmental pollution; claims for indoor carbon-monoxide exposure are covered.

Circuit 5Circuit 8(this circuit)

Pollution exclusion is unambiguous and operates as an 'absolute' bar to coverage for any injury arising from the discharge or release of a pollutant, including indoor carbon-monoxide exposure.

Conflict Summary

Some circuits treat the pollution exclusion narrowly, limiting it to traditional environmental pollution on grounds of ambiguity or insureds’ reasonable expectations (e.g., 2d & 10th Circuits). Other circuits—including the Eighth Circuit in this opinion—treat the same clause as an unambiguous, 'absolute' exclusion that bars coverage for any injury arising from the discharge or release of a pollutant such as carbon monoxide (e.g., 5th & 8th Circuits).

Parties & Counsel

Parties

Appellant:Lyle Rodin and Darin Rodin
Appellee:North Star Mutual Insurance Company