But, then I see crap like this (1, 2), and realize they're just fruitcakes (hence, "loony left", eh?). The "argument", such as it is, is that air conditioning is an "unsustainable" technology (uses too much fuel, etc.) and that people shouldn't live in hot places. I'm shocked that there's no companion article arguing people shouldn't live in Scandinavia because it's too cold in winter and they'll just waste fuel heating their homes. It's really the same argument.
The problem is not the basic idea of regulating temperature. Humans have been doing that for years. The problem is twofold: first, our homes are not designed to retain heat in winter but also lose heat in summer; and, second, the technologies we use to heat and cool our homes are wasteful. So, two obvious solutions: first, build homes better (instead of cookie-cutter townhouses dumped in the middle of a previously open field, with no regard for where the sun will hit them and such); and, second, develop more efficient technologies for regulating temperature (instead of burning natural gas and running a pump while pushing air through a refrigerated region, respectively). Simple.
But the idea that air conditioning is inherently bad is part of this loony left idea that we should all eat vegan organic foods and walk to work and so on and so forth. There's no good principled arguments for these sorts of views, and, practically, they're a nightmare (largely because they will never be accepted by the average person). Instead of pretending we can create some environmentalist utopia, I humbly suggest we simply try to improve the way our world actually operates.