Related coverage on air con

All air conditioners release water. That's Physics. Cities like Los Angeles pour billions of water down the drain every year. And while home owners who are savvy to water reuse are finding ways to use AC water in the garden (here are 5 ways to use air con water at home), or in art studios (it's basically free distilled water), cities could save water in meaningful ways by using creative ideas. These are solutions you can send to urban planners and those running smart city accelerator programs. Pick one of them and you might win the grant! 

The Afghan windcatcher car cooler isn’t just clever. It’s low-cost climate adaptation. With rising global temperatures and millions of cars still without functioning air con, it’s a design-for-the-rest-of-us moment. A punk rock move in a world of overdesigned heat tech. Plus, it’s deeply sustainable: no refrigerants, no increased fuel use, no carbon guilt. Just water, airflow, and a little DIY spirit.