Wyoming Gov. Mark Gordon thinks climate change is an urgent problem, but he is also making a case to keep using one of his state’s biggest resources: coal.

Wyoming produces nearly half the coal burned by U.S. power plants. As coal use nationally has fallen because of low natural-gas prices, revenue from coal in Wyoming has plummeted. Coal severance taxes, one source of revenue, fell by more than 25% over the past decade to $194 million last year, according to the state Department of Revenue.

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