The CO2 question is a good one, but I’m glad this isn’t commonplace where I live. I planned to stay and work remotely from Oaxaca for a month about a year ago. Unfortunately trash service isn’t very reliable and many people burn theirs at night. Air conditioning is rare as it never used to get very hot, although locals said this is changing. This meant that each night we had to choose between sweltering heat with the windows closed or relatively comfortable temps with an overwhelming smell of smoke. I enjoyed my time there but had to cut the trip after two weeks.
I wondered at the time if this would drive more carbon usage, people getting air conditioning so they can keep windows closed for good air quality. But rising temperature may make air conditioners inevitable regardless.