Can Air Conditioning Become Greener?

It’s been a sweltering July for large swaths of California, and that means air conditioners have been running on high in households lucky enough to have them. But the energy air conditioners consume and the refrigerants they rely on pose serious threats to the climate. We learn about air conditioning tech and look at California’s efforts to make them greener. And we’ll hear from you: if you have air conditioning, do you have tips for using it efficiently? Or if you don’t have AC, or if you try to avoid using it, how do you keep cool?