I am writing this from a converted warehouse office in East London where the air is currently thick enough to chew. Outside, the pavement is radiating a dry, punishing heat that our Victorian-era infrastructure was never designed to withstand. For years, the progressive stance on air conditioning has been one of aesthetic and environmental snobbery. The prevailing sentiment among the chattering classes is that AC is a gaudy American excess—a lazy substitute for thick stone walls and a cross-breeze. This posture isn't just outdated; it is increasingly lethal.

We have spent decades moralizing about the energy cost of cooling while ignoring the physiological cost of overheating. The argument that we should simply rely on 'passive cooling' and better urban design is academically sound but practically cruel. Yes, we should plant more trees and retrofit every council estate with reflective roofing. But those are generational projects. The heatwaves are happening now, and they do not hit everyone equally. The executive in a leafy suburb can retreat to a basement or a shaded garden. The delivery driver, the frontline nurse, and the family of four in a south-facing high-rise flat have no such luxury.

If we frame air conditioning as a luxury, we ensure it remains one. By treating cooling as a private consumer choice rather than a public utility, we allow the market to dictate who deserves to be cognitively functional and physically safe during the summer months. To be a progressive today must mean advocating for a right to thermal comfort. We need to stop viewing the humming compressor as a sign of moral failure and start viewing it as a critical piece of climate adaptation infrastructure.

This requires a move away from individual window units toward large-scale, state-funded district cooling systems. Just as we socialize the distribution of water and heat, we must socialize the removal of heat. The environmental critique—that AC contributes to the very warming it mitigates—is a technical challenge to be solved with renewables and better refrigerants, not an excuse for mass suffering.

We are entering an era of climatic triage. To pretend that a damp flannel and a desk fan are sufficient responses to a rapidly warming continent is a form of denialism. We need to sharpen our position: air conditioning isn't a betrayal of the planet; it is a necessary tool for survival in the world we have built. It is time to sign off on a cooling policy that puts the thermostat in the hands of the many, not just the wealthy few.