Hot streak: US heatwaves lasting longer as record temperatures bake south-west

Phoenix and Californian town of Needles experiencing 70th day in which temperatures have reached 90F

A brutal heatwave is persisting throughout much of the US, with cities across the south-west reaching all-time records for hottest consecutive days. Intense heatwaves are becoming more frequent as a result of the climate crisis, but alarmingly, these streaks of hot days are also lasting longer.

People living in cities in Arizona, California and Texas are entering their second month of days in which the temperature reaches 90F (32.2C) and above. Cities such as Phoenix, and Needles in California, have had no relief from this extreme heat in the past 70 days, with Phoenix recently experiencing three consecutive weeks of temperatures reaching 110F (43.3C) and above.