Noisy
← this week  ·  Subscribe →

The world is being quietly rearranged by people who write very long documents.

Federal Register · May 26, 2026
The title they went with Phasedown of Hydrofluorocarbons: Reconsideration of Certain Regulatory Requirements Promulgated Under the Technology Transitions Provisions of the American Innovation and Manufacturing Act of 2020 Noisy translates that to

US environmental regulators let old air conditioners keep getting installed

What happened
US environmental regulators are making it easier to install existing air conditioners and heat pumps that use older refrigerants. This means companies can sell and install their current stock of equipment that uses hydrofluorocarbons, avoiding financial losses.
Why it matters
The US has been phasing down refrigerants that warm the planet. But companies had a lot of existing air conditioners and heat pumps that use these older chemicals. This rule lets them sell off that inventory instead of scrapping it, which means a slightly slower transition for homes and small businesses.
The signal
Watch for sales figures of residential and light commercial AC units to see if older HFC-based models continue to sell well into 2025, or if the market quickly shifts to newer refrigerants.
If you insist
Read the original →