Fernando Uceta, who has COPD, uses a portable oxygen concentrator to breathe as he sits on the balcony of his home during the summer heatwave, in Barcelona's Raval neighbourhood, Spain, June 27, 2023.
© 2023 Nacho Doce/Reuters
      
          Fernando Uceta, who has COPD, uses a portable oxygen concentrator to breathe as he sits on the balcony of his home during the summer heatwave, in Barcelona's Raval neighbourhood, Spain, June 27, 2023.