TOPSHOT - An Indian worker inspects a pad made of shredded wood fibre at an air cooler factory in Hyderabad on March 23, 2017.
Air coolers, with their moistened fibre pads and electric powered fans are used extensively in the summer months across the Indian subcontinent as temperatures rise above 40 degrees celsius in many areas. / AFP PHOTO / NOAH SEELAM        (Photo credit should read NOAH SEELAM/AFP via Getty Images)