Credit: AP/Wilfredo Lee

An intense heat wave is crippling the West this week, sending the mercury above 120 degrees in places like Phoenix. In a sign of just how hot things are getting, some airlines have had to cancel flights because of the heat.

American Airlines said it cancelled 50 flights out of Phoenix Sky Harbor aboard Bombardier CRJ aircraft on Tuesday because the planes can’t operate above 118 degrees.

 Heat waves are intimately tied to climate change as rising background temperatures make them more intense and common. The latest batch of heat will cook an area from northern California to western Texas, a region home to some seven of the 10 fastest-warming cities in the country.

Temperature records have already fallen across California and heat will build throughout the week. Sacramento, San Jose, Palm Springs, Fresno and Death Valley all set daily highs on Monday. But the hottest temperatures aren’t even expected to arrive until Tuesday. They’ll last through Thursday, and forecast highs mean the region could set all-time […]

Read the Full Article