Would reduced heating due to warmer winters offset this? Global carbon emissions due to heating are approximately 4 times the amount of carbon emissions due to cooling [0].
(Of course, the ideal scenario is not that rising carbon emissions from increased cooling get offset by lower emissions from decreased heating, but rather that we transition to abundant carbon-free energy from solar, wind, nuclear, etc. and are able to keep our houses as cool as we want in the summer and as warm as we want in the winter without any environmental consequences.)