Climate change is real. Climate has been changing since the beginning of time. We were not populated as much during the last big changes to be concerned over it. I live in the south and the sometimes the humidity makes the air like a steam bath. I've never had a problem with rust on items inside my home. Our AC comes on when the temp gets in the low 70's and stays on until the temp gets to the high 60's. AC in the south summer is as important as heat in the north winter. Most homes in my area have the in house generator not for winter so much as for ac in the summer if the power goes out. In winter we have to add moisture to the air. It's always something no matter where you live.