Instead, California has prioritized in-state wind and solar farms, bowing to the will of labor unions that want those jobs.

It’s hard to blame Golden State politicians, and voters, for taking the easy path.

But global warming is a global problem — and whether we like it or not, the electric grid is a giant, interconnected machine. Coal plants in conservative states help fuel the ever-deadlier heat waves, fires and storms battering California and other progressive bastions. The electrons generated by those plants flow into a network of wires that keep the lights on across the American West.

Also important: Montana and other sparsely populated conservative states control two U.S. Senate seats each, and at least three electoral votes apiece in presidential elections. Additional federal support for clean energy rests partly in their hands.

Those are the practical considerations. Then there are the ethical ones.

For years, the West’s biggest cities exported their emissions, building distant coal generators to fuel their explosive growth. Los Angeles looked to Delta, Utah. Phoenix turned to the Navajo Nation. Albuquerque turned to the Four Corners region.

That wave of coal plants — some still standing, some demolished — created well-paying jobs, lots of tax payments and a thriving way of life for rural towns and Native American tribes. All are now struggling to map out a future without fossil fuels.

What do big cities owe those towns and tribes for producing our power and living with our air and water pollution? Can we get climate change under control without putting them out of business? What’s their role in the clean energy transition?

If they refuse to join the transition, how should we respond?

A team of Los Angeles Times journalists spent a week in Montana trying to answer those questions.

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