and maybe to some degree, you can stick heat into groundwater
Do it long enough, and even that would become a problem. There are parts of the London Underground that are uncomfortably hot to ride because it's existed so long they've managed to heat-soak the ground around the tunnels.
Because if you try to discuss what needs to be done on the typical means of communication in the 21st century (i.e., fascist-controlled social media), you'll be censored (and possibly referred to the FBI for prosecution as a "terrorist") before you can even begin to get organized.