Workers walk on wooden planks as they disembark a boat after crossing Batanghari River in haze-shrouded Jambi, on the Indonesian island of Sumatra, September 17, 2015. A worsening haze across northern Indonesia, neighbouring Singapore and parts of Malaysia on Tuesday forced some schools to close and airlines to delay flights, while Indonesia ordered a crackdown against lighting fires to clear forested land. (Photo by Reuters/Beawiharta)
