No need for you to strain yourself, overly. Here is the basic information: https://apnews.com/article/climate-change-air-conditioning-fdddd1efe2992032f027ed81d05ca51b Of course, I no longer care about Global Warming, since the situation is now hopeless. I only care about my own personal comfort. But it is not just about increasing longevity. More important is enhancing quality of life. For example, AC use can improve mood. And, do you not realize that YOUR MOOD might need a bit of improving? If our world were not so over populated, especially in places such as Bangladesh, then we would not need AC as much. And, what do you think will happen when the BANGLADESHIs begin clamoring for AC in every room?,,,, It will be BEDLAM, I tell you. India will get even hotter, as a result. It is all Catch-22 They are damned if they do, and damned if they don't, no matter what. In a nutshell.....They are just plained damned. Everybody knows this. Please just check the valid literature. Even the Bangladeshis know this, and better than most people.