Just mention it as one of the low-emissions alternatives to fossil power. Cite climate-focused organizations for support rather than industry-specific organizations. The aim is to reduce emissions, not to promote one specific technology toward that end.
I wish that we just had carbon tax-and-dividend instead of a thousand different regulations and tax code incentives mandating or nudging toward specific kinds of efficiency measures and fossil replacements. At the same time I understand that carbon taxes face enormous popular opposition while tax credits and CAFE standards don't, so I'll accept having 3 different kinds of federal tax incentives to separately promote nuclear power, wind power, and solar power (plus a myriad of differently structured state level incentives) as the best the US can currently do.
In theory it seems like a great idea, in practice with decades of 10’s to 100’s of Billions in R&D it’s unlikely to improve that much within the next 5-10 years. (106 Billion and counting from the US government alone: https://www.forbes.com/sites/jeffmcmahon/2018/07/09/nuclear-...)
https://en.wikipedia.org/wiki/Life-cycle_greenhouse-gas_emis...
Displacing fossil-derived electricity with enough low-carbon electricity to supply an air conditioner is more effective than raising the AC temperature one degree or planting a tree.
The key issue is to reduce emissions. Sometimes that necessitates reduced consumption of energy services [1]. But reducing consumption is not sufficient and often not necessary to deeply cut emissions.
If 3 tons of CO2 per capita per year is a sustainable emissions rate, then the US emits at about 550% of the sustainable rate. Even Cuba emits at 107% of the sustainable rate. No polity is going to voluntarily reduce their material standard of living below that of Cuba. And even a super-emitter like the US could reach the sustainable rate with a combination of more efficient energy use and non-fossil (renewable and nuclear) primary energy production substituting for fossils. So I think that "stop burning fossils for air conditioning" is a prescription closer to solving the root problem than "endure a little more discomfort in the air conditioning season."
[1] For example, there is no foreseeable technology that will enable trans-Atlantic passenger flights without burning chemical fuels. Long distance flights could burn synthetic fuels made using non-fossil electricity, but that would raise fuel prices. Whether by fiat or by pricing, long distance air travel will necessarily become less common if/when aviation faces pressure to reduce CO2 emissions.