Want to fight climate change? Build more nuclear power.

Aging plants and competition from cheaper alternatives threaten the future of US nuclear power, the country's largest source of carbon-free electricity. Even with renewable energy, it will be exceedingly difficult to meet US climate change targets if much of American nuclear goes offline, Cunningham writes.

The floundering U.S. nuclear industry just got a bit of good news: Utah is considering building two new nuclear reactors.

Blue Castle Holdings Inc. has signed a memorandum of understanding with Westinghouse that could eventually lead to the construction of two AP1000 nuclear reactors. The two reactors have an estimated cost of $10 billion and an estimated operational date of 2024.

If constructed, Blue Castle says the reactors will increase Utah’s electricity generation capacity by 50 percent, which would replace the power lost with the retirement of a few coal plants in the state.

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