Climate Resilience Idea – Cheap Air Conditioner With A Turbo Air Compressor – Expander?

Every year the heat record gets broken somewhere on the planet. Therefore we need preventive innovations to make life livable in these places.

Long term we need to get to zero emissions. But in the short term we need effective and massively affordable solutions.

Extra large diameter battery fans chargeable by solar could very well be sufficient for some time.

I wonder though. I saw a company make a refrigeration solution with a turbo air compressor – expander.

Inspired by this. Could a company not make a dirt cheap air conditioning unit?