This summer has been one of the hottest for the entire world, with temperatures rising above 100 degrees Fahrenheit quite frequently. Here in the United States, there are many places where the heat has gone well above 100 degrees. And at Death Valley National Park, the temperature this past week attracted crowds hoping to see it reach 130 degrees. In the National Park System, there are places where summertime heat is routine, something the rangers have become accustomed to and know how to cope with, and something not all park visitors know how to deal with. To get a sense for conditions this past week in two of the hottest places in the park system, we’ve reached out to rangers at Grand Canyon National Park and Death Valley National Park.