Urban heat islands — where cities are significantly warmer than surrounding countryside — create intensified welfare risks for companion animals, urban wildlife, and working animals in cities.
Urban heat island welfare impacts are worsening as climate change intensifies. Dogs walked on summer pavements experience burns after just 60 seconds on asphalt above 60 degrees Celsius. Urban birds experience reproductive failures as heat islands cause mismatch between breeding timing and prey availability. Community cooling centers and urban greening reduce heat island severity for both humans and animals.