Summer hasn’t officially begun, but record-breaking heat is already sweeping parts of the country (opens original article in a new tab)

Record-breaking heat and severe weather are affecting millions across the U.S. as summer approaches, with extreme temperatures, storms, and flooding threatening tens of millions of people.

• 26 million people face extreme heat in the West, Plains, and Southeast with temperatures up to 108 degrees
• Severe thunderstorms and flash floods threaten 20 million people in Midwest and South
• El Niño may be contributing to temperature shifts, amplifying climate change effects