sábado, 18 de julho de 2026

Why is Dubai doomed by growing heat?

 


Why is Dubai doomed by growing heat?

Dubai is not literally doomed, but it faces an existential challenge from extreme heat and humidity driven by climate change. The intersection of soaring summer temperatures, sometimes reaching over 50°C, and high coastal humidity makes the region uniquely vulnerable.

Several compounding factors are contributing to this climate crisis:

  • Lethal Wet-Bulb Temperatures: Climate scientists warn that the Gulf region risks crossing the threshold of unlivable "wet-bulb" temperatures. When humidity reaches a point where the human body can no longer sweat to cool itself, outdoor exposure can be fatal in just six hours.
  • Hyper-Reliance on Air Conditioning: The city relies on massive, uninterrupted power grids to keep its skyscrapers, cars, and mega-malls cooled. A prolonged power grid failure during an extreme heatwave would cause the city to become instantly uninhabitable, putting millions at risk.
  • Severe Infrastructure Strain: Extreme solar radiation and thermal shock from summer rain cause concrete to crack and waterproofing membranes to fail. This requires constant, costly urban retrofitting and maintenance to keep modern infrastructure from literally degrading.
  • Water Scarcity: To support its massive population and cooling systems, Dubai relies almost entirely on energy-intensive desalination. As the Persian Gulf gets hotter, the desalination process requires more energy and chemicals

 

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