By Priyanka Runwal , Climate Central and Elisa Raffa , Fox 46 Charlotte (FOX 46 CHARLOTTE) – On sweltering summer days, the Roof Above homeless shelter in Charlotte doubles as a cooling station. Air conditioning in the building, and more recently fans and misting units on the porch, provide respite from dangerous conditions outside. “Heat is really tough on those folks that we serve,” says Randall Hitt, Roof Above’s vice president of engagement. “If you’re somebody who doesn’t have a place to call home, like you and I might have, it’s really hard spending hours outside when you’re talking about 90-degree-plus temperatures and a lot of humidity.” An analysis of weather station data showed Charlotte was on average 2°F warmer last summer than it was in the summer of 1970, with 11 more days when the temperature reached 95°F. As heat-trapping pollution continues to build in the atmosphere, cities and rural areas are getting hotter.…