Not if that installed A/C also functions as a heat pump that reduces gas furnace use in the winter. Especially if decent cooling also incentivizes better insulation (which would further reduce energy use at both extremes).
Carbon emissions from heating account for about 4 times as much as carbon emissions from cooling, worldwide. Replacing gas furnaces with heat pumps will greatly improve overall annual carbon emissions, even if they blast the A/C all summer.
Not if that installed A/C also functions as a heat pump that reduces gas furnace use in the winter. Especially if decent cooling also incentivizes better insulation (which would further reduce energy use at both extremes).
Carbon emissions from heating account for about 4 times as much as carbon emissions from cooling, worldwide. Replacing gas furnaces with heat pumps will greatly improve overall annual carbon emissions, even if they blast the A/C all summer.