Ylenia Aguilar raised her two sons in Arizona — first in Tucson and later Phoenix, so they’re no strangers to scorching heat. Just recently, Phoenix hit its 100th straight day at or above 100 F (37.8 C), shattering the record set in 1993.
She remembers scary moments “seeing soccer kids and my own children pass out and faint from, you know, heat-related illnesses,” she said. “It was seeing my sons dehydrated.”
Scores of U.S. schoolyards like hers are carpeted in heat-absorbing asphalt, with no shade even for play areas. The buildings were often made with wall and roofing materials that radiated heat into indoor spaces. Kids are also more vulnerable to heat illness than adults. Their bodies have a harder time self-regulating in extreme heat in part because they sweat less, so they can become dehydrated faster. Climate change is heightening the risks. School closures related to heat are becoming more frequent, according to a report by…
