In the summers, the sky is jet black when Raul Cruz arrives at this Imperial Valley sugarcane field to start his day. He chops, cleans and bundles the crop, taking heed as the sun rises. It’s hard work, but so is starting at 4 a.m., even though he knows it’s the safest thing when temperatures in this California desert frequently soar into the triple digits.
In a California farming region, researchers are mapping rural heat to protect farmworkers
