Haj deaths show challenge of shielding pilgrims from scorching climate

Hundreds of the pilgrims who died in fierce heat at this year’s haj were not officially registered with the Saudi authorities, with the result that many had no access to vital services like air-conditioned buses and cool-off tents.

The deaths highlight a looming challenge for organisers as climate change takes hold in the region: the practice of requiring official permits for such services is stirring concern that unregistered pilgrims could increasingly be exposed to life-threatening temperatures.