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Barcelona's Heat Bracelets: A Cool Response to Sweltering Cities
2 Jul
Summary
- Barcelona deployed 1,400 heat-monitoring bracelets to outdoor workers.
- Bracelets alert wearers to dangerous body temperatures.
- This initiative adapts to increasingly aggressive climate change impacts.

Barcelona is implementing an innovative heat-monitoring bracelet system for its outdoor municipal workers. This initiative involves distributing approximately 1,400 bracelets to staff in roles such as street cleaning, park maintenance, and waste management.
The bracelets are designed to measure wearers' body temperature and emit an alert through sound and vibration if a dangerous threshold is detected. Upon receiving an alert, the worker is required to stop their tasks immediately. This measure is a direct response to the severe heatwaves Spain has experienced, which have led to over a thousand excess deaths in June alone.
City officials emphasize that this program is a vital adaptation strategy to combat the effects of increasingly aggressive climate change. The system aims to enhance worker safety and prevent a recurrence of incidents where outdoor workers have succumbed to heat-related illnesses during extreme temperature events.