06:32Science In ActionSouth East Asia choking - againBBC World Service Duration: 31 minutes Fri 20th Sep 2019, 06:32 on BBC World Service Americas and the CaribbeanAvailable for over a yearListen nowWhy even staying indoors offers no escape from fires across the region Show more GenresFactualScience & NatureFormatsMagazines & ReviewsBrandScience In Action Source: BBC Online