Climate change is starting to affect flights in Las Vegas.
As temperatures rise, air becomes thinner, making it difficult to take off.
The extreme summer heat prompted one airline to suspend service for the season.
Another carrier adjusted its departure schedule to take off in the cool morning hours.
And dozens of flights were canceled or rescheduled during a heat wave last month.
Temperatures soared to a record-tying 117 degrees in Las Vegas.
Experts say this is just the beginning.
As temperatures continue to rise, 10 to 30 percent of full planes might have to lighten their loads in order to take off during the hottest times of the day.