This story was originally published by Mother Jones and is reproduced here as part of the Climate Desk collaboration.

If you watch tonight’s Republican primary debate on CBNC, you can expect to hear opinions on the economy and pot, attacks on newly annointed front-runner Ben Carson, and more. You can also expect to see the ad above, which lays out the economic case for action on climate change.

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The 30-second spot is part of a six-figure TV and digital ad buy from NextGen Climate, the advocacy group run by billionaire environmentalist Tom Steyer. At the beginning of the primary season, Steyer promised to focus his group’s energy on holding Republican presidential candidates accountable for their lack of climate action, and to pursue a campaign to “disqualify” any candidate who doesn’t accept mainstream climate science.

“America has never been a country of quitters,” the ad states, over bucolic b-roll of farmers, veterans, and small town Main Streets. “We don’t ignore threats like climate change.”

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Then the scene changes to wind farms and solar panels, as the narrator promises that American-made clean energy will produce jobs, innovation, and energy independence. At the end, it advocates a specific goal of getting half the country’s power from renewable sources by 2030. (We’re at about 7 percent now.)

Steyer is clearly right that clean energy is a major 21st-century growth industry. Solar is the fastest-growing energy source in the country, and employment in that sector already outnumbers coal miners two-to-one. Nearly $40 billion was invested in clean energy in the United States in 2014, 7 percent higher than the previous year. Earlier this month, California adopted the same ambitious target that Steyer is calling for: The state’s power companies will be required to get 50 percent of their electricity from renewables by 2030.

But the message hasn’t yet gotten through to most of the Republican presidential candidates. Marco Rubio’s energy plan is basically the exact opposite of what Steyer wants. Jeb Bush wants to eliminate all energy subsidies, including those for renewables. Other candidates have variously denied the existence of climate change, championed fossil fuels, and taken pot shots at President Barack Obama’s climate agenda.

The one exception, believe it or not, is Ben Carson, who — despite engaging in climate change skepticism — recently said he wants “more than 50 percent” clean energy. Maybe tonight we’ll learn more about how exactly he plans to get us there.

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