Ozone hole, global warming, same playbook being used against fixing them

I remember my stepdad rushing to get air conditioning coolant for his Buick. Later he took me out in the car. “This will be the last AC fluid charge for AC this cold,” he told me. “After this, it’ll be weaker. We’ll never have frigid air conditioning like this again, so soak it in.”

At the time, it felt like a total Mad Max moment. Like society was changing and we’d lost something.

At first, it was true. The replacement coolant fluids didn’t create AC as cold. But over the years, systems were t...