Atmospheric Reality Check On The Way startribune.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from startribune.com Daily Mail and Mail on Sunday newspapers.
Around 4 million people in the U.S. work as contractors for app services like DoorDash delivering pizzas, salads and pad thai. Those in areas with extreme heat are taking new measures to keep working through it.