USPS and UPS workers in Texas are raising alarms about unsafe working conditions amid extreme summer heat, with both unions demanding better safety measures. USPS workers in Corpus Christi report issues such as inadequate heat breaks and lack of air conditioning in delivery vehicles, following incidents of employees fainting on the job. Similarly, UPS workers in McKinney protested after a driver crashed due to heat exhaustion, highlighting multiple heat-related incidents, including a fatality. The Teamsters union criticized UPS for not equipping new delivery trucks with air conditioning as previously agreed, citing a lack of transparency regarding safety modifications. Both unions emphasize the need for urgent action from management to protect workers' health and safety in extreme temperatures. These incidents underline a broader concern about worker safety in hazardous conditions across the delivery sector.