Buy an AC, get comfortable, and if this is a real issue to you, sit down and think long and hard about how best to affect the problem. You'll find better options than not running your AC.
(Edit: for perpective, most residential dwellings in Canada run heaters from november to march and AC from june to september. This is a big problem - your AC, your whole carbon footprint is less than a fraction of a percent of CO2 per year. This issue is systematic and will not be solved by voluntary simplicity
And about moving - where do you go? I'm happy where I am with hitting -30C to -40C in the winter, but we are having historical forest fires right now, first ever acutal tornado alert in my life and are hitting 30-35C multiple times a week, and trying to go higher North is only mining towns and fishing villages. Southern Hemisphere?)