For example, as household wealth increases, so does the presence of household appliances like refrigerators and televisions, the report notes. These appliances generate heat, making homes warmer.
And because air-conditioners work in part by venting hot air outside, they also make the surrounding neighborhood warmer. By some estimates air-conditioning can raise overnight temperatures by about two degrees Fahrenheit (one degree Celsius) in some cities, the report said. Practically speaking, if enough of your neighbors buy an air-conditioner it may increase the temperature in your home enough to drive you to do the same.
And then, of course, there’s climate change. India is already one degree Fahrenheit warmer on average than it was a century ago. This has led to more “cooling degree days,” or days when average temperatures are warm enough to necessitate air-conditioning.