Mid-afternoon on September 6, Denver Public Schools released a list of 31 schools that would either be shut down early or closed entirely today and tomorrow, September 7 and 8, because they don’t have air conditioning and temperatures approaching triple digits are predicted. Since then, two more schools — South High School and Brown International Academy — have been added to the rundown, bringing the total to 33, or around 16 percent of the 207 schools in the DPS system, which serves around 90,000 students…