The combination of heat and humidity would have quickly created life-threatening conditions inside the packed, un-airconditioned tractor-trailer where dozens of immigrants were found dead, an expert said.
Although it’s unclear how long the people had been inside the trailer, it likely would only take a hour or less for temperatures to climb as high as 125 degrees (51 Celsius) or hotter, said Jennifer Vanos, an assistant professor in climate and health at Arizona State University who has studied child deaths in cars.
